Rick bought 3 shirts for $18 each, 2 pair of socks for $3.99 a pair, and a pair of slacks for $45.00. The sales tax rateis 8.5%. How much did he pay?

Answer 1

Add all prices together — $18 + 2($3.99) + $45 = $70.98

Multiply that total by 1+ the tax in decimal form — $70.98(1.085) = $77.01

You can also multiply the total cost of the items by the tax (in decimal form) and then add that product to the total cost of the items. You will get the same answer with one extra step.