Answer:

Step-by-step explanation:

The correct option is B.
Answer:
Function
Step-by-step explanation:
Two different X's could equal the same Y value so this is a function. Remember if there's multiple of the same input (x) equalling different outputs (y) then it is not a function. If there's multiple inputs (x) equalling the same output (y) it's just coincidence and works.
Answer:
a
Step-by-step explanation:
inverse ----> y = x
x = 2y - 7
2y = x + 7
y = (x+7)/2
The area is 40 because you do 12 times two then eight times two then add the awnsers