Question: Jimmy and Irene go shopping for clothes on a Tuesday, where senior citizens get a 10% discount on their purchases.  Jimmy picks out 3 shorts from the $15 rack.  Irene grabs 5 shirts from the $17 rack.  How much money do they give to the cashier?
Solution:
Jimmy’s shorts cost 3 x $15 = $45.
Irene’s shirts cost 5 x $17 = $85.
Total cost for the clothes is $45 + $85 = $130.
10% discount on the clothes is $130 x 10% = $13.
They give the cashier $130 - $13 = $117.
Answer: 117