Question

Sara's family had dinner worth 40 dollars at a restaurant. They had to pay 7% sales tax. How much did they pay for the dinner?

• A. 41 dollars
• B. 42.80 dollars
• C. 47 dollars.
• D. 40.70 dollars

Answer 1

The correct option is B 42.80 dollars

Price of the dinner = 40 dollars
Sales tax = 7%

7% of 40 dollars = $\frac{7}{100}$$\times$40
= 2.8 dollars

Total cost = 40 + 2.8
=42.80 dollars

Hence, Sara's family paid 42.80 dollars.