Answer
15
Work Step by Step
$\frac{8}{20}$=$\frac{n}{37.5}$ set cross products equal
20n =8 $\times$37.5
20n= 300 divide by 20 both sides
$\frac{20n}{20}$=$\frac{300}{20}$
n=$\frac{300}{20}$
n=15
The missing length is 15 units