Desk cost $349.50 once delivered invoice reflects $387.22. if tax is 7.5% how much was the shipping charge?

Shipping charge was $11.51

Step-by-step explanation:

(1.075)($349.50) = $375.71 (cost of desk, with tax, without shipping)

Subtracting this amount from the total paid, $387.22, we get $11.51 as the shipping charge.

Check:  Does $349.50 + $11.51 + $24.47 = $387.22?  Yes

21/58.

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the answer is simply just 6n add the two together as they have an n