Answer:
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
