I only got 22-25 done cause its been a long time since ive done these so i don't remember how to do the first two ):
Isolating the variable terms and dividing by 4, we have
Taking the square root, we have 
Answer:
The mechanical energy isn't conserved.
Step-by-step explanation:
Honeslty I think you should Start cheatin on your Hw
Answer:
x < -5 (~Divide -1 to both sides)
Step-by-step explanation:
-x > 5
~Divide -1 to both sides
x < -5