One container of yogurt is $0.79 at the grocery store. Nicola has a coupon for 30% off her entire purchase. She has $10.00 to spend. What is the greatest number of containers of yogurt Nicola can buy using her coupon?
30 percent off means that we can just reduce 30 percent from .79 to get .55. divide 10.00 by .55 to get the answer of 18.18. The max yogurts Nicola can buy is 18.