Eric bought lunch for him and his friends at Papa's Pizza. His bill was $50 with tax. If he used a 15% off coupon and then left a 20% tip based on the discounted ticket, how much did he have left out of $100 bill?

Responses
A $51.00
B $47.00
C $60.00
D $40.00
E $49.00

The amount Eric saved with the 15% off coupon is: 15% of $50 = $7.50. So his bill after the discount is $50 - $7.50 = $42.50.

Eric then leaves a 20% tip based on the discounted bill, which is: 20% of $42.50 = $8.50.

Therefore, the total amount Eric spent, including the tip, is $42.50 + $8.50 = $51.

To find out how much he has left out of a $100 bill, we subtract the spent amount from $100: $100 - $51 = $49.

So the answer is E) $49.00.