I need help with the following question. Please show all working.

A company producing jigsaw puzzles has fixed costs of

$6000 and variable costs of $2 per puzzle. The company

sells the puzzles for $5 each.

(a) Find formulas for the cost function, the revenue

function, and the profit function.

(b) Sketch a graph of R(q) and C(q) on the same axes.

What is the break-even point, q 0 , for the company?