Question

an item costs $42.28 all you have in cash are three $20 bills. How much change should you receive in the transaction?
A. 17.72
B. 18.28
C. 22.28
D. 42.28

Answer 1

20x3=60

so if the item coast 42.28 and you have 60$ 
you subtract 42.28 from 60 that give us 17.72

so the correct answer will be the first one 

Answer 2

A.17.72 because you subtract $42.28 from the 60 dollars in 20 dollar bills