500+ 18(56) equals total cost of refrigerator 
$1508
        
             
        
        
        
Answer:
27.5 pages read per hour
Step-by-step explanation:
 
        
                    
             
        
        
        
Given:
The arithmetic sequence is −15, −33, −51, −69.
To find: 
The nth term of the arithmetic sequence.
Solution:
We have,
−15, −33, −51, −69
Here,
First term: a = -15
Common difference is



Now, nth term  of an arithmetic sequence is 

Substitute a=-15 and d=-18.



Therefore, the nth term of the given arithmetic sequence is  .
.
 
        
             
        
        
        
So what does it want you to what’s the equation
        
             
        
        
        
Answer:
diameter it goes throught the circle and as end points across