What is the simplest form 2 sqrt 3 / sqrt 6

Ageologist had two rocks on a scale that weighed 4.6 kilograms together. rock a was 0.5 of the total weight. how much did rock a weigh?

If f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x)

|p| > 3 {-3, 3} {p|-3 < p < 3} {p|p < -3 or p > 3}