Upgrade Android Calculator

I have a calculator that determines the amount of child support payable in Texas. This project will upgrade that calculator. I can send you the app files for the project. 1. Main Page Child support is based on annual income. The calculator allows input of gross annual income. (see attached screenshot). However, many persons are paid monthly, twice per month, every two weeks or weekly. The app should be changed to allow inputs for each of these pay periods. As an example, a screenshot of the iPhone version of the app is attached. 2. Child Support Calculations I can provide you with the iPhone .m file that shows how these various pay periods are treated in child support calculations. The java calculations must be changed accordingly. 3. Scroll View At this time, the input page does not scroll. Adding the additional pay periods will take up enough of the screen that the input page will have to scroll. The input page must be able to scroll. 4. Results Page The results page must be changed so that the recap of inputs shows the pay period selected. I have attached a screenshot of the results page of the iPhone version of the app as an example. 5. Variable Sized Screens (if possible) This app was built for the Droid. I would like it to work on tablets also. Is there a way to make the screens automatically expand to the size of a tablet screen? If so, I would like to include this feature.