Please solve this and explain grade depends on it

What is the solution to the inequality

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39

John has 1/2 pound of oranges to share with julie. if they share the oranges equally, how much will each of them have?