The initial measure is:
m1 = 28 ft
The real measure must be:
m2 = 14 ft
The correct procedure to determine the scale factor is:

Dividing both numbers between 14 we have:

Rewriting:
Answer:
Zelie should have divided both numbers by 14.
Answer:
Factorization
Step-by-step explanation:
This can be easily factorized into (x+7)(x+9)=0 which can be solved for the two roots x = -7 and x = -9
Im pretty sure the answer would be A, B & D
Answer:
12x + 30 - 6 + 9
Step-by-step explanation: