How do you solve for the area of a regular polygon?

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

Pls brainliest will be awarded if answer is correct