first lets do the tax 6% of 42.75 = 0.06 * 42.75 = 2.565 then add that to original amount 42.75 + 2.565 = 45.315 now we add the tip, 15% of 45.315 = .15*45.315=6.79725 now add that to the amount 45.315 + 6.79725 = 52.11225 if you round your answer should be around 52.11
