Need Help on this math problem. Thank you

Question

Part 1 It takes Carlos 4/5 of an hour to paint a room. Which expression represents the number of hours, h , it will take Carlos to paint 7 rooms? Answer Choices A. 7÷4/5 B. 7h÷4/5 C. 4/5×7 D. h×4/5×7 Part 2 Carlos earns $13.50 per hour as a painter. How much money will Carlos earn if he paints 9 rooms? $ ? Enter a number like 15.39.

Answer 1

 

 4/5 x 7

 

 

4/5 x 9 x $13.50 = $97.20