Answer:
     -9/7
Step-by-step explanation:
To find the slope given 2 points, we use the formula
m = (y2-y1)/(x2-x1)
  where (x1,y2) and (x2,y2) are the two points
m = (-3-6)/(5--2)
m = (-3-6)/(5+2)
    = -9/7
 
        
                    
             
        
        
        
If the circumference of a circle is changed from 9 cm to 3 cm, then the diameter decreases by a factor of 3.
        
             
        
        
        
Answer: 322
Step-by-step explanation:
23 students × 14 homework 
=322 problems 
The teacher will have to grade 322 problems 
 
        
             
        
        
        
Answer:
yes
Step-by-step explanation:
 
        
                    
             
        
        
        
3/10 is the answer to 4/5-1/2