Answer:
38
Step-by-step explanation:
it is quite simple so try to solve it
For On call = 10/3.5 = $2.85 for per hour
For talk time 1.25/1/2= $2.5 for per hour
So the first one is -0.5 and second is -0.5 the third one is -0.5 and the fourth is -0.25 so I would say that is D
Answer A and Answer D along with the ones you picked beforehand