The answer is D 
real explanation: take 0.642 & divide it by -0.28.
        
             
        
        
        
Answer:
Step-by-step explanation:
When solving equations with fractional or decimal coefficients, the equations needs to be multiplied by the multiple of denominator such that the equations have integer coefficients and constants
 
        
             
        
        
        
Answer:
I think its a. (-2,-4)
Step-by-step explanation:
 
        
             
        
        
        
Answer: 12
Explain: Hope this helps!