Answer:

Step-by-step explanation:
Suppose number is x
Following equation can be written from question statement

Simplifying it further




Answer: Undefined
Step-by-step explanation:
Replace x with -5
Tow ratios that have the same value when simplified.
Hope this helps!!;)
Answer:
c+15
Step-by-step explanation:
add the numbers c+15
c+15 is your answer.