Answer:
the correct answer is 21.07070206. 
 
        
             
        
        
        
Let a = 7 , b  = 7, and c = 13. c is always the biggest number.
Acute Triangle is when 

Right Triangle is when 

Obtuse Triangle is when 
 
 
        
        
        
Answer:
59.8%
Step-by-step explanation:
599 - 300 = 299. Now we need to find the percentage 299 is of 500. 
299 / 500 = 0.598
0.598 as a percent is 59.8%. 
Answer: 59.8%
Hope this helps!
 
        
             
        
        
        
The question is about rearranging the given formula to express M in terms of T,C and N:
If you subtract CN on the left and on the right, then swap it around, you get:
M = T - CN
Which is the rewritten formula for M. (Check if it makes sense: the total cost minus the monthly cost is the remaining yearly membership cost, yes that does make sense).