Answer:
25. No slope
Step-by-step explanation:
25. Y2 - Y1 / X2 - X1
= -8 - (-3) / 9 - 9
= -5 / 0
= no slope; straight line
Use this formula (Y2 - Y1 / X2 - X1) for each ques.
 
        
             
        
        
        
Answer:
0.3 L
Step-by-step explanation:
3 L / 10 students = 3/10 = 0.3 Liters per student
 
        
             
        
        
        
#1:  15%
#2:  1/10 = 10%
There are 6 girls who have blonde hair out of 40 students; 6/40 = 15%.
There are 4 boys that have black hair out of 40 students; 4/40 = 1/10 = 10%.
        
                    
             
        
        
        
<u>Answer:</u> 504
<u>Step-by-step explanation: </u>
Least Common Multiple is :
              504 
Calculate Least Common Multiple for :
    18, 24 and 56
Factorize of the above numbers :
    18 = 2 • 32 
    24 = 23 • 3 
    56 = 23 • 7 
Build a prime factors table
    Number of times each prime factor
    appears in the factorization of :
 Prime 
 Factor   Number 
 18   Number 
 24   Number 
 56    L.C.M  
 (max) 
2	1	3	3	3
3	2	1	0	2
7	0	0	1	1
 LCM = 23 • 32 • 7
Least Common Multiple is :
      504