Posted by Mia on .
Country Workshop manufactures both finished and unfinished furniture for the home. The estimated quantities demanded each week of its rolltop desks in the finished and unfinished versions are x and y units when the corresponding unit prices, in dollars, are described, respectively, in the following equations.
p = 3101x1/2y
q = 7301/2x1/7y
(a) What is the weekly total revenue function R(x,y)?

math (4) 
Kuai,
R(x,y) = xp + yq
x(3101x1/2y) + y(730 1/2x 1/7y)
310x x^2 1/2xy + 730y 1/2xy 1/7y^2
= x^2 1/7y^2 xy + 310x + 730y