Hiroto paid $4.28 in sales tax for the items that he purchased. PercentsTotal 100% If the sales tax rate was 6.25 percent, what was the total cost of the items before tax was added?

The sales tax is 6.25% of the pre-tax cost, so $4.28 = 0.0625 × (pre-tax cost). Divide $4.28 by 0.0625 to get $68.48. The total cost before tax was $68.48, choice D.

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