You do 304 subtract 217 which equals 87
        
             
        
        
        
Answer:
7/9
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
The explicit formula for a geometric sequence:

 - n-th term
 - n-th term
 - first term
 - first term
 - common ratio
 - common ratio

We have

The common ratio:

<h2>It's not a geometric sequence.</h2>
If  then the common ratio is
 then the common ratio is 
Put to the explicit formula:

Put  and solve for <em>n </em>:
 and solve for <em>n </em>:


 
        
             
        
        
        
Answer: Biased sample
Step-by-step explanation:
This is a biased sample because only students with strong opinions are likely going to volunteer or show interest in representing the school at the board meeting. This sample is a voluntary type sample, and at such the conclusion is not valid. This sample is biased because a group or population of students have a higher or lower sampling probability.
 
        
             
        
        
        
Set up an equation to solve.
70% of original price equals $550, the amount Susan is paying.
0.70x = 550