Question

nicole paid $8.40 to fill her car with gas. Of that amount, $0.90 was for taxes. What was the tax rate, in cents per gallon?

Answer 1

12%
Do you need an explanation?

Answer 2

$8.40 *$0.90 =$7.56%

Answer 3

$7.50 x1.12 = (which is the same as adding 12% to it) = $8.40

Answer 4

$8.40 - $0.90 = $7.50