You clean a community park for 6.5 hours. you earn $42.25. how much do you earn per hour?

6.5 hours is equal to:

60 mins x 6 + 30 mins = 390 mins



42.25 / 390 = 13/120



Now there are 60 minutes in an hour, so what we do is multiply 13/120 by 60 to find out how much you earn per hour...

13/120 x 60 = 6.5



You earn $6.50 per hour.

Well if you have 20 bats you probably want 20 balls? you don’t have enough context to answer the question.