Respuesta :
First this belongs in math. But heres the answer.
For every bag you need 3.5 gallons of water. You have three bags so multiply by three. You end up with 3(3.5) simplify and you get 10.5
For every bag you need 3.5 gallons of water. You have three bags so multiply by three. You end up with 3(3.5) simplify and you get 10.5