Answer:
54
Step-by-step explanation:
 
        
             
        
        
        
Answer:
12 
Step-by-step explanation: 12:3=4, 4 x 2= 8
 
        
             
        
        
        
Answer:
See Below. 
Step-by-step explanation:
We are given that ∠1 and ∠7 are supplementary. 
And we would like to prove that a is parallel to b. 
   Statements:                                           Reasons: 
 Given
              Given
 Supplementary Angles
                               Supplementary Angles
 Definition of Supplementary
                Definition of Supplementary
 Congruent Supplements Theorem
                                               Congruent Supplements Theorem
 Corresponding Angles Converse
                                                      Corresponding Angles Converse
And we are done!
   
 
        
                    
             
        
        
        
Answer:
C^2=AxN
M^2=AxN
M^2=17x4
M^2=68
M=8,2
Step-by-step explanation:
 
        
             
        
        
        
3/4 is 75%
for this think of them as quarters 4 quarters is 100 %, 2 quarters is 50% so 3 quarters would be 75%
or you could just do 3 divided by 4 then times that by 100