Jake is buying a sweater with a price of $30 shown on the tag. The store is having a sale that will reduce the price by 30%. Sales tax of 5% will be added to the final purchase price. What is Jake's total cost for the sweater?

In this question, we're calculating for the final price of the sweater.

We know that the original price of the sweater is $30

The price is reduced by 30%

Calculate the reduced price:

30 * 0.30 = 9

30 - 9 = 21

Now, calculate sales tax:

21 * 0.05 = 1.05

21 + 1.05 = 22.05

The total cost of the sweater is $22.05

Answer:

$22.05