At Dorothy's Hair Salon, 4 gallons of shampoo will last 3 weeks. She has 7 gallons of shampoo. How much more must she order if she wants to have enough for 12 weeks?I will give brainliest
Accepted Solution
A:
4 gallons=3 weeks 12 weeks/3 weeks = 4 4 gallons X 4 groups of 3= 16