select the correct answer. karen paid $43.70 for a book. the price of the book was $40. what was the sales…

select the correct answer. karen paid $43.70 for a book. the price of the book was $40. what was the sales tax rate? a. 8.48% b. 9.25% c. 10.78%

select the correct answer. karen paid $43.70 for a book. the price of the book was $40. what was the sales tax rate? a. 8.48% b. 9.25% c. 10.78%

Answer

Explanation:

Step1: Calculate the tax amount

$43.70 - 40=3.70$

Step2: Calculate the tax rate

Let the tax rate be $r$. We know that $40\times r = 3.70$, so $r=\frac{3.70}{40}=0.0925$. Convert to percentage: $0.0925\times100% = 9.25%$

Answer:

B. 9.25%