Im sorry i messed up its a and ....
Answer: The number can be used to express the change in temperature= -14
Step-by-step explanation:
Given: The temperature in evening dropped by
.
Thus, the change in temperature = 
Since the temperature in evening is dropped or decreased , thus in integers the change in temperature = 
Therefore, the number can be used to express the change in temperature= -14
The answer is b that’s the correct answer
Put the equation in desmos and you will get your answer :)
It's either 15, 17 or 18. Anything higher would make angle AC much longer than seen in the image.