Question

Extreme Protection, Inc. manufactures helmets for skiing and snowboarding. The fixed costs for one model of helmet are $5300 per month. Materials and labor for each helmet of this model are $40, and the company sells this helmet to dealers for $65 each. (Let x represent the number of helmets sold. Let C, R, and P be measured in dollars.)
(a) For this helmet, write the function for monthly total costs C(x).

Answer 1

i just need help finding the profit function?

Answer 2

c(x)=40x+5300
r(x)=65x

Answer 3

your cost and revenue functions look good

profit = revenue - cost