Our line equation is

where the slope m=1/2 and the y-intercept b is b=7.
Parallel lines has the same slope. Hence, their slope is always

in this case.
Answer:
-24
Step-by-step explanation:
You are just counting by two's.
Answer:
Possibly 3.
Step-by-step explanation:
A consecutive odd number that adds up to 39 and is the smallest (not including 1) is 3.
13, 3's equals to 39.