Can you guys tell me what's the answer i'm stuck

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

How many $20 bills do you need to have to make $280

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.