Answer:
For the first washing machine, the sale price is:
Sale price = Original price - Discount
Sale price = $360 - 0.30($360)
Sale price = $360 - $108
Sale price = $252
For the second washing machine, the discount is calculated in two steps. First, the price is discounted by 10%:
Discounted price = Original price - Discount
Discounted price = $360 - 0.10($360)
Discounted price = $360 - $36
Discounted price = $324
Then, the discounted price is further discounted by 20%:
Sale price = Discounted price - Additional discount
Sale price = $324 - 0.20($324)
Sale price = $324 - $64.80
Sale price = $259.20
Therefore, the sale price of the first washing machine is $252 and the sale price of the second washing machine is $259.20.
Kareem should buy the first washing machine because it is cheaper. Even though the second washing machine has an additional discount, the first washing machine is already discounted by 30%, which makes it a better deal.