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%

Option b. 9.25%

Step-by-step explanation:

Karen paid for a book = $43.70

The price of the book = $40

Sales tax on the book = 43.70 - 40.00

                                     = $3.70

Sales tax rate = × 100

                       = 9.25%

Option b. 9.25%

6 hours 48 min

step-by-step explanation:

68÷5=13.6

13.6×30=408min=6 hours 48 min.

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