Question

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Robert spends $30.45 before tax at the bookstore. If the sales tax rate in his city is 7.25%, what is the total cost of his purchase?

Answer 1

The total cost of Robert's purchase, including sales tax, is $32.66.

Step-by-step explanation:

To calculate the total cost of Robert's purchase, we need to add the sales tax to the initial cost. First, we can find the amount of sales tax by multiplying the cost before tax ($30.45) by the sales tax rate (7.25% or 0.0725). So, the sales tax amount is $30.45 x 0.0725 = $2.209625 (rounded to 2 decimal places). Now we can calculate the total cost by adding the initial cost and the sales tax: $30.45 + $2.209625 = $32.659625 (rounded to 2 decimal places).

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