Achemist recorded the change in temperature of a cooling liquid as −25.5°f over a 1.5 minute period. the temperature fell at a constant rate. what was the rate of change in temperature? enter your answer in the box.

The rate of the change of the temperature is calculated by dividing the change in temperature in °F by the total duration or time in minute. That is,
                   rate of change in temperature = -25.5°F / 1.5 min
                                                                         = -17°F / min
Thus, The temperature changes by -17°F per minute. 

The answer is C, hope it helps