If the demand for a pair of shoes is given by 2p+5q=100 and the supply function for it is p-2q=10 , find the quantity demanded and the quantity supplied when the price is $40

Dominique makes and sells pies. The number of pies demanded weekly, qD, is given by qD = 75 – 3p where p is the price of a pie (in $).  The number of pies she is willing to supply weekly, qS, is given by qS = 4p – 20 where p is the price of a pie (in $).  If the price of a pie is set at $15, how much of a shortage or surplus of pies would there be in a week?  Blank 1. Fill in the blank, read surrounding text.   Write either shortage or surplus in the box. of  Blank 2. Fill in the blank, read surrounding text. pies

The demand equation for a French press (a type of coffee maker) is given by P = 0.5Q2 - 35Q + 210, where Q is the number of units demanded per month and P is the price per unit. Find the demand when the price is $30.

For many florists, the days leading up to Valentine's Day are among the busiest of the year. An owner of a florist wanted to estimate the average sale amount for all sales made on the day before Valentine's Day, February 13th. When she had time she wrote down the sale price of a transaction of fresh flowers on a sheet of paper. By 3pm she had collected n=44 sale prices of all flower sales that were made day. The variable of interest is the total euro amount of each purchase. During her quick tea-break she calculated the average sale price of the 44 sales as 80.05 euro and found that they varied with a standard deviation of 20.3 euro. Estimate the value of the population mean, µ, the true mean sale amount of all sales on February 13, by calculating a 95% confidence interval. Fill in the blanks in the following: An estimate of the population mean is . The standard error is . The distribution is (examples: normal / t12 / chisquare4 / F5,6). For a 95% confidence interval the…