Need help will give brainalist!!

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.

The function below show how much jayna and hannah charge for babysitting. which statement best compares the two plants?