What would be the total cost after including sales tax on the order of 66 thirty-second spots?

To determine the total cost after including sales tax on an order of 66 thirty-second spots, it's essential to first understand how to calculate the pre-tax total and then add the appropriate sales tax.

Assuming each thirty-second spot costs a certain amount (let’s say it's a standard cost), we would multiply that cost by the number of spots to find the subtotal. For example, if each spot costs $5, the pre-tax total would be 66 multiplied by $5, leading to a subtotal of $330.

Next, you would apply the applicable sales tax rate to this subtotal. If, for instance, the sales tax rate is 6.25%, you would calculate the tax by multiplying the subtotal ($330) by the tax rate (0.0625), which would yield $20.625. Adding this tax to the subtotal gives us a final total.

Therefore, the correct answer reflects a total that incorporates both the pre-tax cost of the thirty-second spots and the calculated sales tax. In this case, the provided answer is consistent with the correct final total after these calculations. Understanding this process emphasizes the importance of accurately calculating both the subtotal and the sales tax to arrive at the right final price.