Answer:
1/2
Step-by-step explanation:
there is a total of 12 people
6/12 people have red hair
if you simplify, it is 1/2
therefore there would be a 1/2 chance that someone with red hair would be chosen.
 
        
             
        
        
        
Answer:
5/6 because you have a 4/12 chance its divisible bye 3. and 6/12 divisible by 2. 
4/12+6/12=10/12
10/12=5/6
 
        
                    
             
        
        
        
Answer:
D. Fourth example. 
Explanation:
In a function, you cannot have two of the same x values, and since 3 and 5 go to two different y values, this cannot be a function. 
Hope this helps :)
        
             
        
        
        
Answer:
x=8.16y
Step-by-step explanation:
x is the cost of of the dozens of roses
y is the number of dozens of roses you have
 
        
             
        
        
        
Answer:
The equation not represent a proportional relationship because the line don't passes through the origin
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form  or
 or  
In a proportional relationship the constant of proportionality k is equal to the slope m of the line <u><em>and the line passes through the origin</em></u>
so
In this problem we have

This is the equation of the line in slope intercept form
where
the slope is m=5
the y-intercept is b=5
Remember that in a proportional relationship the value of b must be equal to zero (because the line passes through the origin)
therefore
The equation not represent a proportional relationship because the line don't passes through the origin