None of them are parallel but D. is perpendicular. I'm sorry if this doesn't help...
        
                    
             
        
        
        
Answer:
Below.
Step-by-step explanation:
I can't read it very well but one equation might be 
2x + 8 = 3x - 12
(because the opposite sides of a parallelogram  are congruent.
 
        
                    
             
        
        
        
16 pints because 1 pint equals 2 cups each so multiply 16 x 2 which equals 32
        
             
        
        
        
Answer:
11.3 - 8.7n
Step-by-step explanation:
Its almost basically combining like terms
You subtract - 5.7n - 3n to get -8.7n, then you add 3.3 + 8 to get 11.3 and you finally put it an equation 11.3 - 8.7n