Subtract 13 from both sides.
-13
-7 = -20
-2x = -20
Divide by 2 on both sides.
Remember: Negative divided by a negative makes a positive.
-2/-2 = 1
-20/-2 = 10
Your answer:
x = 10
3rd choice i think but i could be wrong i’m kinda dumb
Answer:
A. 
B. 

C. Both sides will continue to increase as they go because this is an even degree quadratic equation.
D. You use the two x-intercepts to make sure it is in the correct area and since we know the end behavior all you'd have to assume is that it continues to go up so any negative answers you may accidentally receive would be incorrect.
Answer:
1,080
Step-by-step explanation:
QUICK MATH
Rule: Minus 14 for each number.
-35 + 33(-14) = -497
34th term = -497