Sandra bought four items in sale. On which purchase did she save the money?

Convert 16 yards to feet use the conversion rate 3 feet = 1 yard

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.