Slope of perpendicular is -1/3.
Then equation is 
y-5=(-1/3)(x+9)
        
             
        
        
        
Answer:
expression:  (30/t) - 10
evaluation:  30/2 - 10 = 5
Step-by-step explanation:
 
        
             
        
        
        
Answer:
a.5
b.3a+3
Step-by-step explanation:
in a,u need to replace 2 with x,so it will be 4-2+3
in b,replace 3a with x and so it will be6a-3a+3
 
        
             
        
        
        
range is the greatest number minus the least and interquartile range is the third quartile minus the first quartile