find the perimeter of a triangle with sides 15 inches, 15 inches, and 21 inches length
To find the perimeter of a triangle we add all the sides of the triangle
The length of the sides of the triangle are given as 15 inches, 15 inches, and 21 inches
Perimeter of a triangle = 
15 inches + 15 inches +   21 inches = 51 inches
So 51 inches is the perimeter
 
        
             
        
        
        
Answer:
Nitrogen
Step-by-step explanation:
Nitrogen and oxygen are by far the most common; dry air is composed of about 78% nitrogen (N2) and about 21% oxygen (O2). Argon, carbon dioxide (CO2), and many other gases are also present in much lower amounts; each makes up less than 1% of the atmosphere's mixture of gases. Hope this helped!
 
        
                    
             
        
        
        
Answer:
1, 2
2, 5
3, 8
4, 11
5, 14
Step-by-step explanation:
you just plug each n value into the <em>n</em>
 
        
             
        
        
        
It would be 100,300
Hope this helped
        
                    
             
        
        
        
Answer:
5 months
Step-by-step explanation:
Given :The bank withdraws $15  from Betsy’s checking account as a  service fee every month.
To Find :  Betsy has budgeted $75 for  the next few service fees. For how many  months will the service fee be covered?
Solution :
Since we are given that $15 is service fees for 1 month
So. $1 is service fee for month = 
So, $75 is service fee for months = 
                                                        = 
Hence$75 service charge will be covered for 5 months .