8 and 12 are separated by 1 line, and they have a difference of 4 units, so.. 
count every two lines and add 4 units
this means that the blue dot is 20
        
                    
             
        
        
        
Answer:
x1= - 8/3 , x2= 8/3
Step-by-step explanation:
 
        
             
        
        
        
Answer:
B. you need atleast one variable for an algebraic expression.
 an equals sign would make it an algebraic equation, 
just a coefficient and a variable is the most basic algebraic expression. you don't need anything other than those for an expression. you can have more than one number, and more than one operation, but they don't have to be there.
Step-by-step explanation:
i hope this helps :))
 
        
             
        
        
        
A) (1, 1)
A scale factor of 1/3 means you shrink it.
        
                    
             
        
        
        
Answer:
75%
Step-by-step explanation:
For this case, the first thing we will do is name variables:
 a: percentage from ticket sales
 b: ticket sales
 We have then:
 a = 75%
 b = (0.75) * (3200) = $ 2400
 Answer:
 a = 75%
 b = (0.75) * (3200) = $ 2400
 The amount of ticket sales is $ 2400.