Answer
$\frac{8}{25}$
Work Step by Step
Use the circle graph on p. 412 (see below). There are 4800 work miles and 15000 total miles. So you have to reduce $\frac{4800}{15000}$. Factor 600 out of both terms and then cancel it out:
$\frac{600*8}{600*25}$
leaving $\frac{8}{25}$
