Intermediate Algebra for College Students (7th Edition)

$x=62,500$
Here, $C(x)=30,000+0.02x; R(x)=0.50x$ when the revenue breaks with the costs then $C(x)=R(x)$ Thus, $30,000+0.02x=0.50x$ or, $30,000=0.50x-0.02x$ or, $x=62,500$