All i know is that if the radius of a circle is 4 feet, the the diameter is 8 feet. Sorry, I don't know the rest.
Answer:

Step-by-step explanation:

Irrational because it can not be written as a fraction
Answer:
Light
Step-by-step explanation:
He is below the standard deviation limits for average or normal.
Yes it is a function any single value of x has only one value of y