I think the answer is letter B
Answer:
Too much please's
Step-by-step explanation:
Please stop begging people to help.
#3 is not a function because there are two answers for one out put
#4 is a function because it is a straight line
X= one ride ticket
12x+7=31
-7 -7
12x = 12x
--- ---
12 12
x=2
$2
