Answer:
A is the least number of packs 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
25*3*8=600
Step-by-step explanation:
25 students has 3 markrers for each then 25*3 is 75, after that marker come in packages of 8,so 75*8 is 600 packages.
 
        
             
        
        
        
Answer:
slope means the monthly salary is $425
Step-by-step explanation:
4050 - 3200 / 6 - 4     =   850 / 2  which is same as 425 / 1
4475 - 4050 / 7 - 6     =   425 / 1
4900 - 4475 / 8 - 7     =  425 / 1
 
        
             
        
        
        
Answer:
The bottom one
Step-by-step explanation:
the lowest dot is on -3 so that's the y-intercept
the other is at 2 x and -1 y