Assignment:
A company that sells radios has a yearly fixed cost of $600,000. It costs the company $45 to produce each radio. Each radio will sell for $65. The company's costs and revenue are modeled by the following functions:
C(x)= 600,000 + 45x
R(x)= 65x
Find and interpret (R-C) (20,000), (R-C) (30,000), and (R-C) (40,000).
Provide complete and step by step solution for the question and show calculations and use formulas.