l=51
m=78
n=51
n and l have the same value since it’s an isosceles triangle, so that’s why I doubled 4x-9
 
        
             
        
        
        
(this is for fractions!!!!!!!!!!!!)  28/5 or 5 3/5
i think u just make it into 5.6/1 multiply by 10 which gets 56/10 and wala 
but it's not simplified. 56 and 10 is divisible by 2 so u get 28/5 which is actually 5 3/5 (which is 5.6!!)
        
             
        
        
        
Answer: it’s 2
Step-by-step explanation:
 
        
                    
             
        
        
        
11 school days are left. 
In the attached picture of a calendar, I marked the days the person has left. There are 11.
 
        
             
        
        
        
Divide the  24  by Ben's  12 .  
If his  12  is a factor, then the division will come out even, 
and the answer will be a whole number.
A).  6 x 4 = 24
B).  5 x 9 = 45
C).  3 x 8 = 24
D).  6 x 9 = 54