Two products manufactured: product A and product B

Weekly demand and cost functions are:

p=230-9x+y

q=130+x-4y

C(x,y)=200+80x+30y

where:

$p is price of product A,

$q is price of product B,

x is weekly demand for product A,

y is weekly demand for product B,

C(x,y) is the cost function.

Find R_x(10,5) and P_x(10,5) and interpret results.