Solve the Problem $x$ Bicycles Is Given By $R(x)=40.00 x-\frac{x^{2}}{200}$ Find the Marginal Revenue When

Multiple Choice

Solve the problem.
-The revenue generated by the sale of $x$ bicycles is given by $R(x) =40.00 x-\frac{x^{2}}{200}$ . Find the marginal revenue when $\mathrm{x}=700$ units.

A) $\$ 40.00 /$ unit
B) $\$ 47.00 /$ unit
C) $\$ 17.50 /$ unit
D) $\$ 33.00 /$ unit