The number ... n
one quarter of the number ... 1/4 of n = 1/4 * n
one third of the number ... 1/3 of n = 1/3 * n
one quarter of the number is subtracted from one third of the number ... 1/3 * n - 1/4 * n
the result is 7 ... = 7
We can put it together: 
1/3 * n - 1/4 * n = 7
4/12 * n - 3/12 * n = 7
1/12 * n = 7     /*12
n = 7 * 12
n = 84
The number you are looking for is 84.
        
             
        
        
        
Answer:
22 people
Step-by-step explanation:
 
        
                    
             
        
        
        
Thirty three because I'm just smart like that so you should believe me entirely.
        
             
        
        
        
ANSWER
The vertex of the graph of 

is

EXPLANATION
The vertex form of a parabola is given by

where 

is the vertex of the parabola.
The function given to us is

This is already in the vertex form.
When we compare this to the general vertex form, we have,


and

Therefore the vertex of the parabola is

Hence the correct answer is option A.