Answer:
She has 24 friends.
Step-by-step explanation:
First youd do 77 - 5 since you know that out of the 77 pieces of gum, she kept 5. So you take away those five for her to keep for herself.
77 - 5 = 72
72 is the amount of candies she gives all of hier friends in total.
Each friend gets only 3 candies, so you'd have to divide 72 candies by 3 to get how many friends she'd given candies to.
72 ÷ 3 = 24
Mia has 24 friends.
