Answer:
if 1in=15miles
then20.4in=? miles
1in by ? miles and 20.4in by 15miles
1in ? miles= 306in miles
divide both sides by 1in
? miles= 306 miles
therefore 20.4in = 306miles
I think it means to multiply.
Step-by-step explanation:
x = 4
Given
= ( cross- multiply )
3x = 12 ( divide both sides by 3 )
its B
X...................