Constructing Math

7.5 Consumer Applications: Sales Tax, Tips, Discounts and Simple Interest. Example 1. Ms. Ortiz bought a $21,950 pickup truck. She paid an additional $1646.25 in sales tax. What was the sales tax rate? Example 2. Suppose that you buy a DVD player for $289 from A-1 Elect5ronics. The sales tax rate in your state is 7.25%. How much is the tax? ................
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