I believe the answer would be A.
Answer:A
The mean is the average of all numbers, in this example it's to national averages which will have many numbers.
If you can give me more information on this I could help you a bit more respond.
Answer:
A property of a function is that it gives one output for an input
if a function gives one output for an input, it is a function and otherwise it is not a function otherwise
here, we can see that we have 2 outputs for the input '6'. therefore, it is NOT a function
Answer:

Step-by-step explanation:
<u>Given that,</u>
3 hours = 180 miles
Divide 3 to both sides
3/3 hour = 180/3 miles
1 hour = 60 miles
So, Mom drove 60 miles in one hour.
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