Answer:
1/4 of them were rotten 
rotten ones = 1/4 × 12 = 3
 ones that weren't rotten = 12 - 3 = 9
 
        
             
        
        
        
Answer: Option E. 22
Solution:
Each dot represents a different brand of chocolate, then to determine how many brands are included in this data set, we only have to count the number of dots: 1+4+3+5+2+3+2+1+1=22
 
        
                    
             
        
        
        
The vertex form of all expressions is given below.
We have given that the expressions
We have to write the function in vertex form.
<h3>What is the vertex form of the equation?</h3>
 The vertex form of a quadratic function is given by f (x) = a(x - h)^2 + k, where (h, k) is the vertex of the parabola.
Therefore the first equation 

it can be written as 

The second equation can be written as 

vertex for is,

The third equation is,

Vertex form is,

Forth equation is,

Vertex form is,

To learn more about the vertex form visit:
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Answer:
(x - 8)^2 + (y + 1)^2 = 68
Step-by-step explanation:
The standard form of the equation of the circle with center (8,−1) is :
(x - 8)^2 + (y + 1)^2 = R^2
If the circle passes through the point (6,7) that means that the point (6,7) is a solution of the equation and we can replace (x,y) with (6,7) to find R.