ANSWER
Find out the expression gives the percent of survey participants who chose swimming.
To proof
As given
75 girls at a summer camp were asked to complete a survey about their favorite outdoor activity. 
27 girls chose swimming 
32 girls chose hiking.
 FORMULA

total girls  = 75
girls chose swimming = 27
put in the formula

= 36%
36% of survey participants who chose swimming
Hence proved
 
        
                    
             
        
        
        
For a parallel line the slope of the lines/equations will be the same but for perpendicular line the slope will be the negative reciprocal
-(1/4)*x+b
b=2-(-1/4)*8
        
             
        
        
        
Answer A. That is the only one. The rest are not true. Hope his helps! I would appreciate it if you gave me brainliest. Thanks! =D
        
                    
             
        
        
        
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Step-by-step explanation: