Step-by-step explanation:
Using the kinematics equation,
v = u + at
where v = Final speed = 15m/s
u = Initial Speed = 30m/s
t = time taken = 10 seconds
a = acceleration.
Substitute v , u and t to find a.

2(x+11) is equivalent to 3x+10x+12
It looks like the next six terms are 22, 26, 30, 34, 38, 42
It is increasing by 4
Answer:
0.5
Step-by-step explanation: