Answer:
You subtract because you're taking away money when you're withdrawing.
Answer:
negative
Step-by-step explanation:
It shoukd be A if im not mistaken
The vertex is halfway between 700 and 800, and the x value of the vertex is right over the 10. So since the x value represents dollars, the maximum (vertex) is 10$ each for 750$
1.

add 5 to both sides

2.

subtract 2 from both sides

3.

add 2 to both sides

and it's the 4th graph option
4.

subtract 5 from both sides

and it's the 2nd graph option
5.

add 5 to both sides

Answers:
1. 3rd option
2. 1st option
3. 4th option
4. 2nd option
5. 2nd option
Hope this helps!