Answer:
3
Step-by-step explanation:

Answer:
192.972 mi/h
Step-by-step explanation:
To solve this, you have to add up all of the speeds and divide by how many values there are.
So if all of them are added together, it equals 771.888. Then, you divide this number by 4 to find the average. In this case, the average is 192.972mi/h.
I think that the answer is c
Answer:
-7 and 9!
Step-by-step explanation:
To get to the sum of 2 you add -7 and 9.
To get to the diffrence of -16 you minus -7 and 9.