The baseball coach bought 2 new baseballs for $1 each. The basketball coach bought 6 new basketballs for $15 each. How much more did the basketball coach spend than the baseball coach?

2

Step-by-step explanation:

2 for $1

6 for $15

15/6 = 2.5

1/2 = 0.5

Baseball = 1 for $0.5

Basketball = 1 for $2.5

2.5 - 0.5 = 2

expression #3 is not equivalent. the others are.

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