Question

What is the sales tax on a $8.50 purchase if the sales-tax rate is 6.5% (6 1/2 %)?

Answer 1

$9.05 would be the amount with he sales tax

Answer 2

The answer is $0.55

$8.50 is 100%.
x is 6.5%

8.50 : 100% = x : 6.5%
x = 8.50 : 100% * 6.5%
x = 0.5525
x ≈ $0.55