A pack of cinnamon-scented pencils sells for $6.00. What is the sales tax rate if the total cost of the pencils is $6.18?

0.18 / 6 = 0.03 = 3 %

To find the sales tax rate, we need to determine the amount of tax paid on the pencils first.

The total cost of the pencils is $6.18, and the initial price of the pencils is $6.00. Therefore, the amount of tax paid on the pencils can be calculated by subtracting the initial price from the total cost:

Tax = Total Cost - Initial Price
Tax = $6.18 - $6.00
Tax = $0.18

Now, to find the sales tax rate, we divide the amount of tax by the initial price and then convert it to a percentage:

Sales Tax Rate = (Tax / Initial Price) * 100
Sales Tax Rate = ($0.18 / $6.00) * 100
Sales Tax Rate = 0.03 * 100
Sales Tax Rate = 3%

Therefore, the sales tax rate is 3%.