The revenue function $R(x)$ and the cost function $C(x)$ for a particular product are given. These functions are valid only for the

specified range of values. Find the number of units that must be produced to break even.

$R(x)=200x-2x^2$;$C(x)=-x^2+25x+5850$;$0x100$

The manufacturer must produce

units to break even.