Final answer:
To find the percent sales tax, divide the amount of tax paid by the total cost of the items purchased and convert the result to a percentage.
Step-by-step explanation:
To find the percent sales tax, we need to divide the amount of tax paid by the total cost of the items purchased and then convert the result to a percentage. In this case, Dorothy paid $12.95 in taxes on a purchase that cost $185. To find the percent tax, we divide $12.95 by $185 and then multiply by 100:
(12.95 / 185) * 100 = 7%
So, the percent sales tax on this purchase is 7%.
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