Step-by-step explanation:
okay I think you can solve this question 
 
        
             
        
        
        
Answer:
An even monomial function is a monomial function in which the degree, or exponent, of the variable is an even number.
 
        
                    
             
        
        
        
Answer:
24 hours
Step-by-step explanation:
The computation of the number of hours taken by Bobby to build the robot by himself is shown below:
Given that 
Bobby could take 12 hours
Together they could build in 8 hours
So based on the above information 
 the number of hours taken by Bobby to build the robot by himself is 
Let us assume the above line be x
So, 

x = 24 hours