450 miles
1 in. Per 60 miles
460/60 = 7.5 inches
Answer:
(C) 
Step-by-step explanation:
Step-by-step explanation:
for a perpendicular,
make x the subject.
8x=11-3y
x=11/8 +3/8
for a perpendicular, the gradient
x= -1/m
x= (-1/11/8) - (-1/3y/8)
x= 8/3y -8/11.
therefore the gradient (m) = 8/3y -8/11.
a=(4,1) b=(4,3) c=(8,2) d=(8,0) i think i havent done these in a while
