Skateboards must be produced with exactly 4 wheels and 1 board for each skateboard. (Suppose that no assembly is required, so labor is not an input.) Let Q represent the number of skateboards, W the number of wheels, and B the number of boards. The price of a wheel is PW, and the price of a board is PB.
a. Write down the production function for skateboards, Q(W, B).
b. Derive the long-run total cost function for producing skateboards, LRTC(Q, PW, PB).
c. Draw a graph of the demand curve for wheels if the firm wants to produce 100 skateboards.

answer; commerce clearing house;

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.