Answer :
16
Explanation :
You arrange the numbers from least to greatest. 7,11,15,15,16,18,19,20,21 After you do that you will find the numbers that are in the center and that will be your median.
Answer:
the ball will hit the ground in 2.09 seconds
Answer: D, both incorrect
Step-by-step explanation:
Answer:y=-1a+2
Step-by-step explanation: