The demand function for a certain brand of cd is given by the following equation where p is the wholesale unit price in dollars and x is the quantity demanded each week, measured in units of a thousand.
p = -0.01x^2 - 0.2 x + 22
determine the consumers' surplus if the wholesale market price is set at $7/disc.

Prior to its closing, income summary had total debits of $1,190,500 and total credits of $1,476,300. what purpose is served by the income summary account and what is the nature of the entries that resulted in the $1,190,500 and the $1,476,300? the income summary account is used to the accounts. the $1,190,500 represents the , and the $1,476,300 represents . the company had of $ .

You are thinking of making your mansion more energy efficient by replacing some of the light bulbs with compact fluorescent bulbs, and insulating part or all of your exterior walls. each compact fluorescent light bulb costs $4 and saves you an average of $2 per year in energy costs, and each square foot of wall insulation costs $1 and saves you an average of $0.20 per year in energy costs.† your mansion has 150 light fittings and 3000 sq ft of uninsulated exterior wall. to impress your friends, you would like to spend as much as possible, but save no more than $750 per year in energy costs (you are proud of your large utility bills). how many compact fluorescent light bulbs and how many square feet of insulation should you purchase? how much will you save in energy costs per year? (if an answer does not exist, enter dne.)

Why does the fed pay interest to banks? a. it is interest on money held in reserve. b. it is interest on credit available to the fed. c. it is interest on loans taken by the fed. d. it is interest on government investments.