Andre wants to buy a backpack. The normal price of the backpack is $40. He notices that a store that sells the backpack is having a 30% off sale. What is the sale price of the backpack?

is it $28

$40(1-.30) = ?

I'll let you do the calculations.

To find the sale price of the backpack, you need to determine the discount amount first.

Discount amount = Normal price * Discount percentage
= $40 * 0.30
= $12

Then subtract the discount amount from the normal price to get the sale price of the backpack.

Sale price = Normal price - Discount amount
= $40 - $12
= $28

Therefore, the sale price of the backpack is $28.

To find the sale price of the backpack, we need to calculate the discounted amount.

Step 1: Calculate the discount amount:
To find the discount amount, we can multiply the original price by the discount rate. In this case, the discount rate is 30%, which can be written as 0.30 in decimal form.
Discount Amount = Original Price * Discount Rate
Discount Amount = $40 * 0.30
Discount Amount = $12

Step 2: Calculate the sale price:
The sale price can be found by subtracting the discount amount from the original price.
Sale Price = Original Price - Discount Amount
Sale Price = $40 - $12
Sale Price = $28

Therefore, the sale price of the backpack after a 30% discount is $28.