M < 2 will be 180 - 122 =  58 degrees
< 3 is opposite < 1 so it will be = 122 degrees
        
             
        
        
        
Sand to cement
7:3
210:x
ask yourself what number is needed to multiply by 7 to get 210 ( so you'd divide 210 by 7 which is 30). Multiply the other side by thirty as well to get the value of x 
3*30 which is 90
        
             
        
        
        
2t+3n=9                                                   2(2)+3n=9
+5t-3n=5 (the 3n cancel out)                   4+3n=9
7t=14                                                       3n=5
t=2                                                           n=5/3 or 1.67
        
             
        
        
        
we know that
if JKLM is a rectangle
then
diagonals 
MK=JL
so
MK=2*MN------> MK=2*25 ft------> MK=50 ft
JL=MK----> JL=50 ft
therefore
the answer is
JL is 50 ft
 
        
             
        
        
        
There are 12 months in a year. The rental term is for 2 years, that's a total of 24 months. 
They pay $505 every month 
24 months × $505 = $12,120 paid over the lease term. 
answer is D.