The revenue functionR(x) and the cost functionC(x) for a particular product are given. These functions are valid only for the specified range of...

The revenue functionR(x) and the cost functionC(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+20x+7875; 0 less than or equal to x less than or equal to 100