Answer:

Step-by-step explanation:
Given

Required
Solve
First, convert 180lb to kg


 -- to 1dp
 -- to 1dp
Next, convert 12oz to kg


 --- to 1 dp
 --- to 1 dp
So, the expression becomes:



Hence:

 
        
             
        
        
        
Answer:
25
Step-by-step explanation:
 
        
             
        
        
        
Answer:The mean absolute deviation of the set of data is 
2.24
.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Hence The composition  of the given function is
 of the given function is  .
.
Step-by-step explanation:
Given:


We need to find  .
.
Solution:
Now we can say that;
 =
 = 

Now Applying distributive property we get;

Now Solving the exponent function we get;

Hence The composition  of the given function is
 of the given function is  .
.