4. At the current price of $63, firms in this (perfectly competitive) market are each producing 8.4 million widgets each year. (The quantities on the horizontal axis are measured in millions.) What will be the price and the typical PIsoprofit curves 90 80 70 60

The table below shows the weekly marginal cost (MC) and average total cost (ATC) for Buddies, a purely competitive firm that produces novelty ear buds. Assume the market for novelty ear buds is a competitive market and that the price of ear buds is $6.00 per pair. Buddies Production Costs Quantity MC ATC of Ear Buds ($) ($) 20 1.00 25 2.00 1.20 30 2.46 1.41 35 3.51 1.71 40 4.11 2.01 45 5.43 2.39 50 5.99 2.75 55 8.47 3.27 Instructions: In part a, enter your answer as the closest given whole number. In parts b-d, round your answers to two decimal places. a. If Buddies wants to maximize profits, how many pairs of ear buds should it produce each week? pairs b. At the profit-maximizing quantity, what is the total cost of producing ear buds? 2$ c. If the market price for ear buds is $6 per pair, and Buddies produces the profit-maximizing quantity of ear buds, what will Buddies profit or loss be per week? 2$

On the graph input tool, change the number found in the Quantity Demanded field to determine the prices that correspond to the production of 0, 6, 12, 15, 18, 24, and 30 units of output. Calculate the total revenue for each of these production levels. Then, on the following graph, use the green points (triangle symbol) to plot the results.   Calculate the total revenue if the firm produces 6 versus 5 units. Then, calculate the marginal revenue of the sixth unit produced. The marginal revenue of the sixth unit produced is________.   Calculate the total revenue if the firm produces 12 versus 11 units. Then, calculate the marginal revenue of the 12th unit produced. The marginal revenue of the 12th unit produced is_________.

Am. 106.

Only typed answer

The following graph plots daily cost curves for a firm operating in the competitive market for demin overalls. Hint: Once you have positioned the rectangle on the graph, select a point to observe its coordinates. PRICE (Dollars per overalls) 50 45 40 35 15 10 5 0 0 2 MC ATC AVC 10 12 4 8 14 16 QUANTITY (Thousands of overallses per day) 18 20 In the short run, given a market price equal to $15 per overalls, the firm should produce a daily quantity of The rectangular area represents a short-run Profit or Loss On the preceding graph, use the blue rectangle (circle symbols) to fill in the area that represents profit or loss of the firm given the market price of $15 and the quantity of production from your previous answer. Note: In the following question, enter a positive number regardless of whether the firm earns a profit or incurs a loss. of $ overallses. thousand per day for the firm.

Farmer Lee grows strawberries. The average total cost and marginal cost of growing strawberries in the long run for an individual farmer are illustrated in the graph to the right. Suppose the market price is $7.05 per box. If so, then farmers will strawberries until the market price is $ number rounded to two decimal places.) per box. (Enter a numeric the market for a real enter exit Price and cost (dollars per box) 10- 9- 8- 5- 3- 2- 1. 0 MC ATC 10 20 30 40 50 60 70 80 90 100 Quantity of strawberries (boxes per week) o

①The total cost for producing x items is given by 12x + 3735. Each item is sold for $21. Find the formula for the total items must be sold to break even? revenue. How Many ②Solve the equation x² - 10x = -2x-15 3 A department store will buy 8 items if the price is $40 per item, and 14 items if the price is $28 per item. The Supplier is willing to sell 5 items if the price is $70 per item and 12 items if the price is $140 per item. If the supply and demand functions are linear, find the equilibrium point. invest $10,000 in an account that pays 10% compounded you continuously, how much money will you have in 15 years? (4) If ⑤ het f(x) = 300 √x + 2. Find the average rate of change when x increases from 25 to 100. Calculate derivatives of the following functions. a) 2 2x-3 4x+5 b) (2x5 +1) 9 ⑦Calculate derivatives of the following functions 8 の 2 6x в) че 6) 1) In (3x² + 5x) Calculate the following integral S (8x7 - 12x 5 + 3x² + 4) dx

Suppose the cost of renting a snowy bus were to fall from $30 per hour to $20 per hour. What do you expect would happen in the short-run (stage 1 equilibrium) to (a) the number of cones produced by each snowy bus; (b) total production of cones in the market, and (c) economic profits of snowy bus businesses? Briefly explain (you don't need to do any calculations, just explain inwords).

What is the​ firm’s corresponding average total cost​ (ATC) per unit​ produced?