Kinsleybuysamattresspricedat$687.47.Ifthesalestaxis5%,whatwillbethetotalcostincludingtax?

Round your answer to the nearest cent

To find the total cost including tax, we need to add the price of the mattress to the amount of tax.

The amount of tax can be found by multiplying the price of the mattress by the sales tax rate. The amount of tax is 5% of $687.47, which is (0.05)(687.47) = $34.37.

To find the total cost including tax, we add the price of the mattress and the amount of tax: $687.47 + $34.37 = $721.84.

Rounding this answer to the nearest cent gives us a total cost of $721.84.