trevani bought a book. she paid a total of $13.50, including 8% sales tax. how much tax did trevani pay on…

trevani bought a book. she paid a total of $13.50, including 8% sales tax. how much tax did trevani pay on the book?\n$0.96\n$1.00\n$1.04\n$1.08
Answer
Explanation:
Step1: Let the price of the book before tax be (x).
The total price including (8%) (or (0.08)) sales - tax is (x + 0.08x=(1 + 0.08)x = 1.08x). We know that (1.08x=13.50).
Step2: Solve for (x).
[x=\frac{13.50}{1.08}=12.5]
Step3: Calculate the tax amount.
The tax amount (T = 0.08x). Substitute (x = 12.5) into the formula: (T=0.08\times12.5). [T = 1.00]
Answer:
($1.00)