producing $53ws.$ Complete parts $($A$)$ through $($I$)$ below.

$AA$ D$.$

$0x12800$

$($B$)$ Find the marginal cost.

The marginal cost is $60.$

$($C$)$ Find the revenue function and state its domain.

The revenue function is $R(x)=\frac{12800x-x^2}{32}$

Determine the domain of this function. Select the correct choice below and fill in the answer box$($es$)$ within your choice.

A$.x^{2}0x12800x>$

$x^2$

$0x12800$

$x>$

Find the marginal revenue.

$le$ marginal revenue $is$