To solve this problem, you need to recognize that the ratios of the coefficients must be equal. So the ratio for this system would be k/4 = -3/-5. Solving for k we get k = (3)*(4)/5 = 12/5, hence the answer is A. Hope that helps!
The answer is C.
http://www.cnn.com/2010/CRIME/06/09/williams.dna.test/
In the atmosphere
I hope this helps
I would help... no picture....