60 /1 = 120 /2 = 180 /3
hope it helps
Answer: 867
Step-by-step explanation:
You subtract what is in the parentheses then add them together
Given: 

A.)Consider





Also,





Since, 
Therefore, both functions are inverses of each other.
B.
For the Composition function 
Since, the function
is not defined for
.
Therefore, the domain is 
For the Composition function 
Since, the function
is not defined for
.
Therefore, the domain is 