Question

A store 7% sales tax.which expression can be used to find the total cost of an item with a price of p?

Answer 1

If you have an item that costs 10 dollars and a sales tax of 7% you could do it this way

10 * 7/100 = 0.70 dollars.

The total cost is 10.70 dollars. or 10 dollars and 70 cents.
The best way to do the total however is to multiply the cost by 1.07. You will get the number the customer has to pay.
10 * 1.07 = 10.70
So for any price (p) it would be 1.07*p

Answer 2

1.07

Explanation:

Below. Lets say 1 is 100 dollars sale tax. If 1 is 100 7 would be 7.00