If FG = 10, GH = 2x, and FH = 7x, what is GH?

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.

Ineed in figuring out this problem.