Respuesta :

Answer:

Number 7 is 25%

Step-by-step explanation:

You take the original price and subtract it by each percentage until you get 30.

$40.00 - 15% = 34

$40.00 - 20% = 32

$40.00 - 40% = 24

$40.00 - 25% = 30

Therefore, the answer is 25% !

Hoped this helped you! :D