C++ simple coding homework

I NEED SOMEONE TO DO THIS BY TODAY I WILL BE ATTATCHING THE GRADES I HAVE SO FAR AND THE SCALE. IT HAS TO BE DONE SIMPLE BECAUSE WE JUST STARTED CODING AND WE'RE ONLY AT CHAPTER 4. SO WE CANT USE CODE I HAVENT LEARNED. 

INSTRUCTIONS:

In essence, algorithms are simply a series of instructions that are followed, step by step, to do something useful or solve a problem. You could consider a cake recipe an algorithm for making a cake, for example.

Here is a good guide on how to write an algorithm: http://sofia.cs.vt.edu/cs1114-ebooklet/chapter4.html

Being as thorough as possible, create an algorithm to calculate your grade for this class.