It took mariah 2 hours to complete 3 pages of math homework. assuming she
works i at a constant rate, if she works for 9 hours, how many pages of math
homework will she complete?

13.5

Step-by-step explanation:

9/2= 4.5 sets of 2 hours

therefore 4.5 x 3 would equal the number of assignments she would complete

4.5 x 3= 13.5

a. she will receive a refund of $278.

step-by-step explanation: