Answer:
38
Step-by-step explanation:
100-13-38-11=38
So Jay has 38 dollars on the budget
 
        
             
        
        
        
Answer:
5 5/11 hours
Step-by-step explanation:
So, there is a trick to doing this. 
You would first need to get their work rate into the same measurements. 
That's why we will find out how much they each work in one hour. 
Tommy does 1/12 of the work in one hour while Robert does 1/10. 
Here we can add them both up to make 11/60. 
They finish 11/60 of the work in one hour. 
They finish the job in 5 5/11 hours. 
 
        
             
        
        
        
Answer:

Step-by-step explanation:
 The question is not correct (particularly the expression for the area)
  A=2lh+2wh
Now we are expected to solve for l, that is we are going to make l subject of the formula, we have
let us take the second term on the RHS to the LHS

we can now divide both sides by 2h we have

hence the expression for the length is  