Answer:
1.524
Step-by-step explanation:
 
        
                    
             
        
        
        
Altho' I can easily guess what you're supposed to do here, I must point out that you haven't included the instructions for this problem.
I'll help you by example.  Let's look at the first problem:
"Evaluate  6(z-1) at z-4."
Due to "order of operations" rules, we must do the work inside the parentheses FIRST.  Replace the z inside (z-1) with "-4".  We obtain
6(-4-1) = 6(-5) = -30 (answer.)
Your turn.  Try the next one.  If it's unclear, as questions.
        
             
        
        
        
The answer is 2.5 just set it up and cross multiply then divide 
        
             
        
        
        
Answer:
the answer is 2 1/3 or There is 2\frack{11}{14}\ cups needed to make every dozen of muffins.
Step-by-step explanation:
Hope this helps:)