Question

It costs $10 to play football for one-half hour. How many 10-dollars bills do we need to play football for 6 hours?

Answer 1

12

Explanation:

how many half hours in 6 hours ?

it is

6/(1/2) = 6/1 / 1/2 = 6×2 / 1/1 = 12 / 1 = 12