Answer
77
   Step-by-step explanation:
You add how much she earns a week with 32 because she earns $1 dollar per book.
 
        
             
        
        
        
Answer:
6. D.
7.  F.
8. A.
9. B.
10. C.
Step-by-step explanation:
6.     9 + (12 - 10) 
        12 - 10 = 2
         9 + 2 = 11
7.      (20 - 15) x 2
         20 - 15 = 5
          5 x 2 = 10
8.      10 ÷ 5 + 7
          10 ÷ 5 = 2
           2 + 7 = 9
9.        6 + 2 x 3
            2 x 3 = 6
            6 + 6 = 12
10.        (2 x 4) + 8
              2 x 4 = 8
              8 + 8 = 16
Let me know if this helps!
 
        
             
        
        
        
Answer: 9
Step-by-step explanation:
4x²-7x+7   f(2)=4*(2)^2-7(2)+7=16-14+7=9
 
        
             
        
        
        
Answer:
The value of the test statistic is 
Step-by-step explanation:
The null hypothesis is:

The alternate hypotesis is:

Our test statistic is:

In which X is the sample mean,  is the value tested at the null hypothesis,
 is the value tested at the null hypothesis,  is the standard deviation and n is the size of the sample.
 is the standard deviation and n is the size of the sample.
In this problem, we have that:

Then



The value of the test statistic is 
 
        
             
        
        
        
Answer:
$249.75
Step-by-step explanation:
135 x 0.85
114.75 + 135