A manufacturer can produce and sell x electronic devices per week. The total cost C (in dollars) of producing x electronic devices is C = 95x + 39,000,
and the total revenue R (in dollars) is
R = 165x.
(a)
Find the profit P, in dollars, in terms of x.
P =

Incorrect: Your answer is incorrect.
(b)
Find the profit (in dollars) obtained by selling 7,000 electronic devices per week.
$

Incorrect: Your answer is incorrect.