Find what the sum of the #s could be by multiplying 15*4 since there's 4 #s . 15*4=60 so the sum of the 4 #s is 60

now, a line perpendicular to that one, will have a "negative reciprocal" slope, thus
First, you factor and simplify (respectively) the numerator and denominator. Your equation becomes:

Notice, there is a (x + 7) on both the top and the bottom. Because of this, they cancel each other out. What is left is your answer:
Answer:
g)
, h)
Step-by-step explanation:
We proceed to solve each equation by algebraic means:
g) 
1)
Given
2)
Definition of division
3)

4)
Associative property
5)
/Result
h) 
1)
Given
2)
Definition of division
3)

4)
Factorization/Distributive property
5)
Modulative and commutative properties/Associative property
6)
/
/Definition of division/Result