Step-by-step explanation: $220 is the original price. you want to first deduct the 30% tax. Find out the 30% tax by multiplying 220 x .30 = 66. So deduct the $66 from $220 to get $154. That is the price. You will need to add on the 5.1% tax. So to get the tax you multiply $154 by .051 to get $7.854. Add that to the $154 sales price to get a total of $161.854. But since money, you can't have a portion of a cent so you round the 4 down
Because like terms you add or subtract together to make it easier to do the problem. just like you do with whole numbers. you add an subtract to make the answer simpler.
