Hello all. My first post here and I hope you will be able to help me out. I am an undergrad student. I have only a few classes left and will be graduating with honors, providing I don't fully drop the ball in math. I have to take two math classes, college mathematics 1 and 2. Once these classes are done, I am all but finished.

I use several tutoring tools and use the examples and tutorials given, but I am having a hard time associating some questions with the examples I've practiced.

Here is one set of problems I am working on. Any help would be appreciated. Thank you in advance.

A rectangle has a fixed width and a variable length. LetPerimeter of a rectangle.Prepresent the perimeter andLrepresent the length.P=28 inches whenL=6.5 inches andP=36 inches whenL=10.5 inches. There is a linear equation that expressesPin terms ofL.

a)Find the equation.

b)What is the perimeter whenL=40 inches?

c)What is the length whenP=215 inches?

d)What is the width of the rectangle?