Answer:
Part A: 
Part B : x = 15
Part C: Megan purchased 15 books.  
Step-by-step explanation:
Megan earns a rebate each month on completing surveys and books. 
She earns $0.75 for each survey she completes and $1 for each book. Now, last month Megan completed 8 surveys and earned $21.
Part A: If Megan purchased x number of books last month, then the equation that will determine the number of books she purchased, is 
 .......... (1) (Answer)
 .......... (1) (Answer)
Part B: Now, solving equation (1) we get,
6 + x = 21 {Since, 0.75 × 8 = 6}
⇒ 6 + x - 6 = 21 - 6 {Subtracting 6 from each side} {Subtraction property}
⇒ x = 15 (Answer)
Part C: Megan purchased last month 15 books. (Answer)
 
        
             
        
        
        
Answer:
<h2>b. (0, 0) and (-3.5, 0)</h2>
Step-by-step explanation:
Look at the picture.
 
        
                    
             
        
        
        
Answer: the answer is polar bear and Hippo
Step-by-step explanation:
1,750+3,865
Which equals 5,615
 
        
                    
             
        
        
        
Answer:
9.125
Step-by-step explanation:
or just 9.12 i think 
 
        
             
        
        
        
Answer:
This is a 12.9% change - increase
Step-by-step explanation:
To find the percent change, use the percent change equation. 
(New - Old)/(Old) * 100 = Percent Change
(525 - 465)/(465)*100 = Percent Change
60/465 * 100 = Percent Change
.129 * 100 = Percent Change 
12.9% = Percent Change