Pakisagot po brainliest ko po correct answer

3. A boy walks a 10 m to the right and the walls back 9 m to the left, what is it displacement? a
A. 19 m, R
B. 19, L
C. 1 m, L d. 1m, R

4. A motorcycle changed its velocity from, 40 m/s to 20 m/s in 5 s. Compute for its acceleration:
a. 3 m/s
b. 4 m/s
c. 3 m/s2 d. 4 m/s2​