Answer the questions and its part below and show all work and steps

So it needs to have every step of how you got your answer. Not just answer and no work shown

5. A video screen company pays $300,000 in fixed costs for its machines and pays $78 to produce each screen. They sell them for $179 each.

1. Find the cost, revenue and profit functions as a function of x, the number of screens sold.
2. What is the breakeven quantity?

6. Wri te as decimals

45p + 60035p + 2002500 P F+ 1+49 2.51