For the first line start at -1 and from there go up to and to the right three
for the second line on nuber one start at 4 and down 1 and to the left 1
        
                    
             
        
        
        
All given options are incorrect ..
As no one is the equation of a circle
        
                    
             
        
        
        
Answer:
4/21
Step-by-step explanation:
I got the first probability and the second probabilty then multiplied them together.
 
        
             
        
        
        
Answer:
10.59%
Step-by-step explanation:
percentage of change is given by
 {(old number - new number)/old number} * 100
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given 
no. of student  went to the first school dance = 340
no. of student  went to the last school dance = 306
Percentage of change between two dance 
= ((no. of student  went to the first school dance - no. of student  went to the last school dance)/ no. of student  went to the fist school dance)*100
= (340 - 306)/340 *100
= (36/340 )*100 = 10.59%
 The percent of change between the two dances 10.59%.