Respuesta :

20/100 = 0.20

0.20 * 9 = 1.8

9 - 1.8 = 7.2

The sale price of the DVD is $7.20.

BlueOrnage

Answer:

$7.20

Step-by-step explanation:

10% of $9 = 0.9

20% = 1.80

$9 - $1.80 = $7.20