Not quite. The conversion factor is 0.4536 kg per pound. The answer is closer to 68.0 kg
You have to provide a system (presumably of equations) to say which of these applies to it. You have given four possible answers but not provided the question. I am not clairvoyant enough for that one
It is an empty graph, with x running from -4 to 10. You have not provided a function or equation to graph.