Answer:
the continuous line forming the boundary of a closed geometric figure
Step-by-step explanation:
that is what perimeter means. if i understand the question correctly. sorry if i don't.
 
        
                    
             
        
        
        
The answer is D) isosceles and equilateral triangle 
        
             
        
        
        
Let x = the number of green apples, let 4x = the number of red apples
4x + x = 50         Set up the quation
5x = 50               Combine like terms
----   ----               Divide by 5 on both sides to get x alone
5      5
x = 10 green apples
4x = 4(10) = 40 red apples 
40 - 10 = 30. Suzanne bought 30 more red apples than green apples.
        
             
        
        
        
Answer: There are 45 combinations.
Step-by-step explanation:
If the order in which you watch the episodes does not matter, then we can use the combinatory defined as:
If we have N elements, and we want to make groups of K elements, we have
 
 
combinations.
In this case, we have a total of N = 10 episodes, and we want to make groups of  K = 2.
Then we have:

There are 45 combinations.