Help me please on 7&8. It would be really appreciated. :) I will be giving brainiest.

Answer:
The answer to your question is below
Explanation:
For question seven, from the posible solutions, the only one that has units of acceleration is the first one, 2.00 m/s², My answer is 6.00 m/s², but in the solutions 6.00 m/s has units of velocity not acceleration, so I would choose the first option.
The law of Newton that says that for every action there is and equal but opposite reaction is the third law,