A street vender constructs the table below on the basis of sales data. (Note: Consumer expenditure and revenue are terms for the same thing from different perspectives. Consumer expenditure is the amount of money that consumers spend on a product, and revenue is the amount of money that businesses take in by selling the product.) Sales of Roses, Given the Price per Dozen Sales (dozen roses) Price (dollars) 20 25 30 32 169 159 134 94 (a) Find a quadratic function for the model of the data that gives the quantity sold at x dollars, data from 20 sxs 32. (Round all numerical values to three decimal places) S(x)= (b) Find a function for the model for consumer expenditure (revenue for the vendor), where x is the price in dollars, data from 20 sxs 32. (Round all numerical values to three decimal places.) R(x)=

The function Q = F(p,ps,y) describes how the monthly demand, Q (measured in 100s of Widgets), for Grinch Inc. Widgets depends on the variables: • p = the price/Widget that Grinch Inc. sets (measured in $). • Ps= average price of substitutes for Grinch Inc. Widgets (measured in $). • y = average disposable income in the market for Widgets (measured in $1000s). When average disposable income in the market is $4200 and Grinch Inc.s price is $12 and the average price of substitutes is $11... ● Q = 66 •Op=-0.28 2ps = 0.52 ● Qy = 0.31 If average monthly income increases to $4400 and the average price of substitutes increases to $11.35, by approximately how much can Grinch Inc. increase their price while keeping demand for their Widgets fixed at Q = 66 ? Ο Δp = 0.87 O There is no way to estimate this from the given information.. Ο Δρ = 0.53 O Ap = 0.72

A certain manufacturer has determined that the weekly demand and supply functions for their product are given by the equations: supply: p=-2x² +80 demand: p = 15x+30 where z represents the quantity demanded in units of a thousand and p is the unit price in dollars. Find the market equilibrium (equilibrium price and equilibrium quantity).

Suppose that during the past year, the price of a virtual reality headset fell from $4,350 to $3,930. During the same time period, consumer sales increased from 386,000 to 487,000 headsets

The inverse demand for good X is given by Px=25-0.005Qx+0.15Py+0.1I where Px is the price of X, Py is the price of Y, I is income, and Qx is the quantity demanded of good X. The inverse demand is just price as a function of quantity instead of quantity as a function of price. To get the demand function, just solve the equation for Qx. You should do this before answering the following. Goods X and Y are . . . .. . . .. . . .. . . . .. . . . X is a  . . .. . . . .. . .  good.

The following graph shows the market for cereal in New York City, where there are over 1,000 stores that sell cereal at any given moment. Suppose the Surgeon General issues a public statement saying that consuming cereal is bad for your health. Show the effect of this change on the market for cereal by shifting one or both of the curves on the following graph, holding all else constant. Note: Select and drag one or both of the curves to the desired position. Curves will snap into position, so if you try to move a curve and it snaps back to its original position, just drag it a little farther. Supply Demand Supply Demand QUANTITY (Boxes) Now suppose Congress passes a tax cut that increases the income of New York City residents. If cereal is a normal good, this will cause the demand for cereal to PRICE (Dollars per box)

The demand function for potatoes per month is given by Q = 104 – 40p + 20pt + 0.01Y, where Q = the quantity of potatoes, p = price of potatoes, pt = price of tomatoes, and Y = income per month. Pt is currently $0.80 per pound). Derive the demand curve for potatoes from the data provided when income is $4,000 per month. Derive the new demand curve when income increases to $5,000 per month. ON a graph show the change in the demand curve resulting from the growth in income.

Elena consumes bundles of food and transportation. In order to understand her behavior, we use a graph of her consumption space in which we draw two axes. We measure food in the horizontal axis and transportation in the vertical axis. Which of the following bundles has the largest amount of food (if the bundles are written consistently with the way we graph consumption)? (80, 100) (99,150) (100,80) (95,95) (98,98)

The following graph input tool shows the daily demand for hotel rooms at the Peacock Hotel and Casino in Las Vegas, Nevada. To help the hotel management better understand the market, an economist identified three primary factors that affect the demand for rooms each night. These demand factors, along with the values corresponding to the initial demand curve, are shown in the following table and alongside the graph input tool. Demand Factor Initial Value Average American household income $40,000 per year Roundtrip airfare from New York (JFK) to Las Vegas (LAS) $200 per roundtrip $250 per night Room rate at the Grandiose Hotel and Casino, which is near the Peacock Use the graph input tool to help you answer the following questions. You will not be graded on any changes you make to this graph. Note: Once you enter a value in a white field, the graph and any corresponding amounts in each grey field will change accordingly. Graph Input Tool (?) Market for Peacock's Hotel Rooms 500 Price 350…

Suppose that for your demand schedule for pizza is as follows:a)Use the midpoint method to calculate your price elasticity of demand as the price of pizza increases from$8 to $10 if(i)your income is $20,000(ii)your income is $24,000.b)Calculate your income elasticity of demand as your income increases from$20,000 to$24,000(i)the price is $12 and (ii) the price is $16