Final answer:
To determine the sales tax rate, divide the amount of the sales tax by the price of the car then multiply by 100. The sales tax rate on the used car priced at $3700 with a $233.10 tax is 6.3%.
Step-by-step explanation:
To find the sales tax rate we need to determine what percentage $233.10 is of $3700. The formula for calculating the sales tax rate is: rate of sales tax = (amount of sales tax ÷ price) × 100.
Using the values from the question, we have:
rate of sales tax = ($233.10 ÷ $3700) × 100
= (0.063 × 100)
= 6.3%
Therefore, the sales tax rate on the used car is 6.3%.