On thanksgiving your grandmother and mother came to the agreement that grandma would make 7 rolls for every 4 pies that you all made .
If grandma made
91 rolls how many pies does your mom need?

52

Explanation:

Divide 91 by 7. This will be 13. (That is how many times your grandma made & rolls.) Now multiply 13 by 4 because you will have to make 4 pies 13 times in order to have the right amount. This will be 52. To check your work, 7 divided by 4 equals 1.75. If 52 is the right answer 91 divided by 52 should equal 1.75 as well. (which it does)

i'm sure the answer you are looking for would be

a. an ice age

hope this contact me if this didn't or you need with more answers : )