2.325647 is your answer .
Answer:
2:1
Step-by-step explanation:
9 is double 4.5
Answer:
D. 180
Step-by-step explanation:

Table A represents the function, because if you look at the other tables they are all relations as in order to be function we need to have one x- value coordinating to one y-value. but the other tables have multiple x-values corresponding to y values.