A wooden bench was originally priced at $100 but went on sale for 80% off. If Gabby bought the wooden bench and paid 15% sales tax, how much did she pay in total?

$23

Step-by-step explanation:

80% of 100 is __

Convert 80% into decimal

0.80

Multiply

0.80 x 100

=80

80% of 100 is 80

$80 dollars off

100-80=20

$20 before tax

15% of 20 is __

Convert 15% into decimal

0.15

Multiply

0.15 x 20

= 3

$3 tax

20+3=23

$23 in total