Help with Functions!! Hi everone this is my first thread and I am looking forward to particitate in PF. Anyways I need help with a question...although I found a solution but I am not sure if it is right..any help would be greatly appreaciated. Question - A Norman window has the shape of a rectangle surmounted by a semicircle. If the perimeter of the window is 30ft, express the area A of the window as a function of the width x of the window. Solution - 2x+2y=30, solvin for y; y=15/2-x A=Rectangle + semicircle A=xy + "pi"(x/2)^2 A=x(15/2-x)+"pi"x^2/4 A=15x/2-x^2+"pi"x^2/4 Well....it looks pretty simple but last assignment I did, I got a low mark and I screwed up in many places....so I just want to make sure it doesnt happen again...thanks in advance.