More Matrix headaches?

Matrix methods can be used to solve linear programming problems. A linear programming problem is used to find an optimal solution, subject to stated restraints.

One typical application is to maximize profits. For example, a beauty parlor provides both highlighting and permanent wave services. It costs $5 in materials and requires 30 minutes to provide highlighting. However, it costs $12 in materials but requires 80 minutes to provide a perm. The store has at most $120 in materials and 800 minutes in labor per day to expend.
How many highlighting services and how many perms can the beauty parlor perform daily to maximize cost and time?

*Everyone makes this sound so simple, yet everyway I try to get the answer I can't get it. I don't even know where to begin. I was always very good in general math but this is a whole new ball game. Any help would be greatly appreciated.

**I have no idea how to set up a matrix. No I was not sleeping in class, I just don't get it! :::pulls hair out:::

~~~

It's been awhile but...

Set it up properly then use the techniques on this link:

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