The answer is 90. you add them all up and divide it by 4
Answer:what are you asking
Step-by-step explanation:
I can explain when I get a question
Answer:

Step-by-step explanation:

compare with that y=mx+c
where m=slope .
So after comparing we get m=
As the lines are perpendicular


therefore m2=
Now from the equation
this equation passing to the point (-5,5) with m=

Therefore equation is

Add 7 on both sides to then left side cancels out and you end up with 13x=143 then you divide 13 on both sides and get x=11