Find an Equation for the Rational Function Graph $\mathrm { f } ( \mathrm { x } ) = \frac { 4.3 \mathrm { x } } { 100 - \mathrm { x } }$

Multiple Choice

Find an equation for the rational function graph.
-Suppose a cost-benefit model is given by $\mathrm { f } ( \mathrm { x } ) = \frac { 4.3 \mathrm { x } } { 100 - \mathrm { x } }$ , where $\mathrm { y }$ is the cost in thousands of dollars for removing $x$ percent of a given pollutant. Find the cost of removing $60 \%$ to the nearest dollar.

A) $\$ 4300$
B) $\$ 6450$
C) $\$ 1500$
D) $\$ 2580$