If you are asking for what the tax is then you take x over 140.88 and 7 over 100 and you cross multiply to get 100x and 986.16 then you divide 100x and 986.16 both by 100 so you get x = 9.8616 but sense .0016 are not cents you round that and get $9.86 as your Tax price and the total amount you would end up paying would be 9.86 + 140.88 which is 150.74 so you would end up paying $150.74 all together but the Tax of 7% is 9.86 for this problem Hope this helped