Question

Jan bought a blazer for $39.90. The price of the blazer was $38. What sales-tax rate was she charged for this blazer?

Answer 1

(total amount paid) - (price of the blazer, before tax) = the amount charged as a tax

divide (the amount charged as a tax) / (price of the blazer, before tax) to find the tax rate as a decimal, then multiply by 100% to convert it to a percentage