Answer:
Step-by-step explanation:

Both of the functions are linear.
is constant.
However we are required to determine the range of 

So the only possible solution that such notation gives is -2374 so therefore the answer in terms of range is 
Hope this helps.
r3t40
Answer:
20 floor
Step-by-step explanation:
16 - 11 = 5 5 + 15 = 20
The elevator is on the 20th floor