Acustomer purchased three pairs of pants for $17.00,$18.95 and $20.50 (prices include taxes). how much change should you give back if they paid with a $50 and $20 bill?

$13.55

Step-by-step explanation:

Given : A Customer purchased three pairs of pants for $17.00,$18.95 and $20.50 .

Then, the total amount he need to pay =

Also, the amount they paid :-

Then , the amount as change we need to give back :-

Hence, the  amount as change we need to give back =$13.55