Question

a customer buys a bag of dog food that costs $12.79 and pays the sales tax of $0.64. how much change is due back from a $20 bill?
$6.57
$7.85
$12.15
$13.23
$13.43

Explanation:

Step1: Calculate total cost

Add cost of dog - food and sales - tax. $12.79 + 0.64=13.43$.

Step2: Calculate change

Subtract total cost from amount paid. $20−13.43 = 6.57$.

Answer:

$6.57$