Order the graphs from narrowest to widest ; f(x)=-3x^2 , g(x)=1/2x, h(x)=4x^2

Can someone show me the steps to solve the problem?

Abag contains 3 red marbles 4 white marbles and 5 blue marbles if one marble is drawn from the bag what is the probability that the marble will be blue

The perimeter of an equilateral triangle is 4 cm more than the perimeter of a square and the length of a side of the triangle is 8 cm more than the length of a side of the aware. find the length of a side of the equilateral triangle