Y=mx+b
m=slope
perpendicular lines have slopes that multiply to get -1
the slopes are
for

and

, the slope are

since their product is -1, the lines are perpendicular
The answer is 40 because if you do 60/1.5 it equals 40
Answer: D)7n=42
Step-by-step explanation: Because when you divide 7 on both side you are left with n=6 and that is the number of caterpillars he can feed in 1 day with 42 leaves