At the pet parade, there are 4 dogs, 5 cats and 2 rabbits. What is the ratio of dogs to all pets in the parade?

step-by-step explan mxfcg'k; uafwgzfgjhklhgation:

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square