please assist me with these problems

Answer: see below
Step-by-step explanation:
Speed = | Velocity |
4.
Velocity -14 20 -2 0 25 -15
Speed 14 20 2 0 25 15
5.
Velocity -16 16
Speed 16 16
6.
3 is greater then -4
|---------|---------|
-4 0 3
7.
A velocity of -4 has a greater speed than a velocity of 3
Velocity -4 3
Speed 4 3