Question

Lin's father is paying for a $20 meal. He has a 15%-off coupon for the meal. After the discount a &% sales tax applicated.

What does Lin's father pay for the meal? Explain and show your reasoning.

Answer 1

The amount of discount that Lin's father will get is 15% of $20, which is:

0.15 x $20 = $3

So after the discount, the cost of the meal will be:

$20 - $3 = $17

The sales tax of 7% is applied to the discounted price of $17. The amount of sales tax is:

0.07 x $17 = $1.19

So the total cost of the meal, including the discount and sales tax, is:

$17 + $1.19 = $18.19

Therefore, Lin's father will pay $18.19 for the $20 meal after the 15% discount and 7% sales tax.