A company's revenue function is given by $$ R(x) = 70x - 150...

Question Analysis
This question tests the student's ability to add two linear functions and interpret the result in a real-world context.

Key Concept Explanation
When adding functions, the like terms are combined. For linear functions, this means combining the coefficients of and the constant terms.

Step-by-step Solution
1. Start with the given functions: and .
2. Add the functions: