Positive 38. This is a subtraction problem. You just need to find the difference between the two numbers.
The second choice is the answer: the initial value is the y value (which is 4) and the rate of change is the slope. The slope is calculated with rise/run, so the rise in this situation is that it moves down (negative) by 3 (rise=-3) and the run is how much it moves to the right (run=4). Therefore, the rate of change is rise/run which is -3/4
3 hours is 1 hour longer than 175 minutes because 175 minutes is only 2 hours and 55 minutes so 3 hours is 5 minutes longer than 175 minutes
The Answer is C, my good friend.