Answer: $21.42
Step-by-step explanation:
First we must REDUCE the price by 15%.
But what is 15% of $24.00?
Well:
24 × .15 = 3.6
15% off of $24.00 means $3.60 off of $24.00
$24.00 - $3.60 = $20.40
The book is $20.40 on sale.
Next we must ADD 5% sales tax.
But what is 5% of $20.40?
Well:
20.4 × .05 = 1.02
$1.02 is 5% of $20.40
$20.40 + $1.02 = $21.42
