Question

A customer buys 8.94 in gas plus three packs of cigarettes for 3.89 each and gives you 50.15 what is his or her change

Answer 1

3.89 x 3 = 11.67
8.94 + 11.67 = 20.61
50.15 - 20.61 = 29.54

$29.54 would be the change.
Hope it helps!