The sales tax on a surfboard is $12. what is the percent of sales tax?

(the sale is 240 dollars)

240 X .1 = 24;  24/2 = 12;  .1/2 = 0.05;  .05 X 100 = 5%

If the purchase was 240, and the tax was 12, the 12/240=.05 or 5%  

If the total purchase was 240, the subtract 12 from 240, and 12/ 228=.0526 or 5.26%

(answer 2 )i’m very smart that’s how i know the answer.