A business advertises that everything in the store is an additional 10% off the already reduced prices. Marcus picks out 2 shirts that are on a 30% off rack. If the shirts are originally priced at $28.99 and $30.29 and there is 6% sales tax, how much does Marcus end up paying for them?

The two shirts cost $28.99 + $30.29 = $59.28 before discounts. A 30% discount followed by an additional 10% discount leaves 70% × 90% = 63% of the original price, so they cost $59.28 × 0.63 = $37.3464. Adding 6% sales tax gives $37.3464 × 1.06 ≈ $39.59, so Marcus pays $39.59.

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