Answer:
I like science right now but last year i was a huge history buff
 
        
                    
             
        
        
        
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.
        
             
        
        
        
B is the Y-intercept or where the graph crosses the y-axis. they provide you with a few things which can help you figure this out. they give you the values of x and y in a table
X | Y
2  |  -5
4  |  -9            The difference between each Y value is 4...so, I add 4 to the -5
6  |  -13            and get -1...going up another value for the X would be at 0.  This leaves me with an ordered pair of (0,-1).....thus, the value of b is -1.
        
             
        
        
        
Maximum can be determined by taking derivative and set it equal to zero. 
 
 
        
        
        
Answer:
<u>see explanation</u>
Step-by-step explanation:
add 41; d = 60