Here you can write your questions.
This is a book for learning Python and "How to Think Like a Computer Scientist". It starts from the beginning (what is a program) and goes up to high level analysis of algorithms. It is published under Creative Commons Attribution-NonCommercial 3.0 Unported License, and you can find it with other books of the author in the authors web site http://greenteapress.com/wp/think-python-2e/
In case that you haven't installed python, you can use the python's online CLI.
You can view a sample answer of the code for calculating the area of a trapezoid.
You can view a sample answer of the code for calculating the solutions of the quadratic equation. I am sure that you have made a good effort and many of you surprised us.