Solve to find the value of n -5 + 5 (n - 7) = -40 + 5n
a. n = 8
b. n = -8
c. many solutions
d. no solutions

is C

Step-by-step explanation:

why are we doing it at school and i did it and it's many solutions

step-by-step explanation: h: (- 3, 6)

m: (1, - 2)

o: (7, 6)

r: (- 9, - 2)

midpoint of hm: (- 1, 2)

midpoint of or: (- 1, 2)

therefore, b is the midpoint of both diagonals bisect each other !

to prove the diagonals are perpendicular, show that the product of the slopes = - 1

12/11c

or

12

c

11