Answer:
24.30 Difference, sale price 56.70
Step-by-step explanation:
30% off 81.00 is 56.70
The difference is 24.30
 
        
             
        
        
        
Deficient
ff f f f f f f f f f f f f  f ff f f  ff f f f f f 
        
             
        
        
        
Answer:
if I am right it is 12,600 words
Step-by-step explanation: 90 divided by 3 which is 30     420x30=12,600
 
        
             
        
        
        
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.
        
             
        
        
        
0 and 2
f(x) = g(x) will be the input or x value at which f and g have the same output or y value. Look in the table where two numbers repeat right next to each other.
−1 −7/2 −9/2
0 −3 −3
1 −2 −3/2
2 0 0
3 4 3/2
4 12 3
5 28 9/2
There are two solutions to f(x) = g(x) which are x=0 and x=2.