Commutative property of addition
1) True. In a function, each x value has exactly one y value.
2) False. For example

is a function, but is not linear. It is represented by a parabola.
Taxes is the correct answer hope this helps :)
Answer:
There are 4 students and 9 apples
Step-by-step explanation
each student recieves 5 apples so 5 x 4= 20 20+ 7=27
27 can be divided by 3 and you get 9.
each student recieves 2 apples and there are 4 students. 9-8 =1
I think your answer would be D