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The regular price of a shirt is $15. Natalie bought it on sale for 0.9 times its regular price. Then the sale price was multiplied by 1.06 to include the tax.

1 Answer

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Final answer:

The regular price of a shirt was $15. Natalie bought it on sale for $13.50. After including tax, the final price of the shirt was $14.31.

Step-by-step explanation:

To find the total cost of the shirt after tax, we need to first find the sale price by multiplying the regular price ($15) by 0.9. This gives us $13.50. Next, we multiply the sale price by 1.06 to include the tax. This gives us a final price of $14.31. Therefore, Natalie paid $14.31 for the shirt after tax.

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