Answer:
The answer would not be A. It is B
Step-by-step explanation:
Because you are subtracting the equations, on the right side of the equal sign, you are subtracting -5 from 7. This is 7-(-5), which is equal to 7+5=12, not -12.
Answer:
Hi,
a=b+3
Step-by-step explanation:


Thus:
c+2b+8-4a=c-a-b-1
3b-3a=-9
<u>a=b+3</u>
Answer:
D.
Step-by-step explanation:
To get from 1 to 2 you multiply by 2.
To get from 2 to 4 you multiply by 2.
Notice how each number is multiplied by 2? Now try multiplying 16 times 2 which would be 32.
Focus of a parabola:

where vertex (h,k) p is the distance from vertex to focus
Answer:
2.5
Step-by-step explanation:
if you take 80 and 120 on the graph look at the middle you get 100 and in between 2 and 3 you get 2.5 so it would take 2.5 gallons of gas for 100 miles