Find the output at which tr is a maximum

Question

Problem

1. Differentiate the function y = 25 - 0.1x^-2 + 2x^0.3.

2. Make up your own function with at least three different terms in x and then differentiate it.

3. Given the demand schedule p = 120 - 3q derive a function for MR and find the output at which TR is a maximum.

4. For the demand schedule p = 40 - 0.5q find the value of MR when q = 15.

The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.