Answer:
The price of the microwave before the sale is $33.33
Step-by-step explanation:
Purchase Price of microwave = $10
Discount rate sale = 30%
let the price of the microwave before the sale = x
original price =
$10 30%
x 100%
cross multiply
1000 = 30x
x = 1000 / 30
x = 33.33
the price of the microwave before the sale = $33.33