A. If you draw the graphs you will find that B, C and D are all false.
I believe it is corresponding to the value of x in type of situational problem.
Answer:
umm i think it is 5 cm but im not sure
2x + 12 = 58 <== ur equation (cost of the trip)
2x = 58 - 12
2x = 46
x = 46/2
x = 23 <== price of 1 pass
