To calculate the total purchase price including sales tax, you can use the following formula:
Total Purchase Price = Purchase Price + (Sales Tax Percentage * Purchase Price)
In this case, the purchase price is $7.49, and the sales tax is 6% (0.06 as a decimal). Plug these values into the formula:
Total Purchase Price = $7.49 + (0.06 * $7.49)
Now, calculate the sales tax amount:
Sales Tax Amount = 0.06 * $7.49 = $0.4494
Now, add the sales tax amount to the purchase price to find the total purchase price:
Total Purchase Price = $7.49 + $0.4494 = $7.9394
So, the total purchase price, including a 6% sales tax, is approximately $7.94.