Mean - 4.19 
median - 4
modes - 0,1,1,2,2,3,3,3,3,3,4,4,5,5,5,6,7,7,7,8,9
range - 9 
interquartile range - 4
 
        
             
        
        
        
Answer:
 or -0.25
Step-by-step explanation:

Plug in a=5 and b=-2
=
=
=
 or -0.25
Have a nice day! :)
 
        
                    
             
        
        
        
3.6y is the answer. If you multiply the 0.3 times the 12 it equales 3.6 and add the y because it’s a variable.
        
             
        
        
        
Answer:
 Plus Sign (+)
Minus Sign (-)
Step-by-step explanation:
Each part of an algebraic expression which are separated by plus sign (+) or minus sign (-).
Note that the division sign (÷) or multiplication sign (×) does not separate the terms of an algebraic expression.
[RevyBreeze]