A laptop has a listed price of 789.98 before tax. If the sales tax rate is 9.5, find the total cost of the laptop with sales tax included.

To find the sales tax multiply the purchase price by the sales tax rate. Remember to convert the sales tax rate from a percent to a decimal number. Once the sales tax is calculated, it is added to the purchase price. The result is the total cost—this is what the customer pays.

799.48

Step-by-step explanation:

add listed price and sales tax

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.