Final answer:
The correct option is D). The tax rate is found by dividing the tax amount of $4.32 by the original price of $54.00 and then converting it to a percentage, which equals 8%.
Step-by-step explanation:
To determine the tax rate when the price of the chair is $54.00 and the total price, including tax, is $58.32, we first calculate the amount of sales tax paid by subtracting the price of the chair from the total price. The sales tax paid is $58.32 - $54.00 = $4.32.
Next, we convert the tax paid into a percentage of the original price to find the rate. To do this, divide the tax amount by the original price and then multiply by 100 to convert it to a percent:
Sales Tax Rate = ($4.32 / $54.00) × 100 = 8%
Therefore, the correct answer is D) 8%.