Here goes the answer. Please mark brainliest.
Part a: Option D 18 feet per second
Part b: increasing
Solution:
Height 
Part a: To find the average rate of change for h(t) between t = 0 and t = 2.
Substitute t = 0 in h(t).

h(0) = 3
Substitute t = 2 in h(t).
h(2) = 39
Average rate of change formula:

Here, a = 0 and b = 2.



= 18
Average rate of change = 18 feet per second
Option D is the correct answer.
Part b:
This means height of the ball is increasing for 0 < x < 2.
Answer:
0.21%
Step-by-step explanation:
2.5/12=0.208 or 0.21
Answer:
8+10+8+10=36+ 2 x 3.14 x radium/2
Step-by-step explanation:
Answer:
Total number of possible outcomes in the sample space will be 
Step-by-step explanation:
Given that,
A spinner is divided into fourths and numbered 1 through 4.
Jake spins the spinner and tosses a coin.
So,
Spinner has divided in to fourths means four parts of spinner such as : 
possible outcomes when a coin is tossed : 
Now, when both spinner spins and coin tossed. possible outcomes are

Thus, these are the possible outcomes of given situation.
therefore,
Total number of possible outcomes in the sample space will be
.