Respuesta :

43.70 / 40 = 1.0925

1.0925 - 1 = 0.0925 = 9.25%

answer: b.9.25%

Answer:

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 = [tex]\frac{3.70}{40}[/tex] × 100

                       = 9.25%

Option b. 9.25%

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