Answer:
The first picture's answer would be (6, 21)
Step-by-step explanation:
You have to find the points on the 8th and the 9th day, and then you would add them together, and then divide by two finding the average, which would be 24 and 18, so when added, you get 42, divided by 2 you get 21. You look on the graph for the point with 21, and you find it is on 6. 
 
        
             
        
        
        
Answer:
15 and a half
Step-by-step explanation:
Bud=17
17-(2/3 x 2)=?        2/3=0.67%, 0.67% of 2=1.34
17- 1.34= 15.66
 
        
                    
             
        
        
        
Answer:
She will pay $216 if she uses the coupon.
Step-by-step explanation:
Since the coupon is 1/7 off, you do 1/7 * 252 = 36. So she saves $36 with the coupon. Subtract the coupon from the total purchase. $252 - $36 = $216. 
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Given:

Solving for  :
:

 
        
             
        
        
        
ANSWER

EXPLANATION
The functions are:




We substitute f(x) into g(x) to obtain:

We now substitute x=0 to obtain;


This simplifies to:
