Need Help solving this in MIT App Inventor. It has to be C language

8. Workshop Selector The following table shows a training company's workshops, the number of days of each, and their registration fees. Workshop Number of Days Registration Fee Time Management 2 $800 Supervision Skills 3 $1,500 Negotiation 5 $1,300 The training company conducts its workshops in the three locations shown in the following table. The table also shows the lodging fees per day at each location. Location Lodging Fees per Day Chicago $225 Dallas $175 Orlando $300 When a customer registers for a workshop, he or she must pay the registration fee plus the lodging fees for the selected location. For example, here are the charges to attend the Supervision Skills workshop in Orlando: Registration: $1,500 Lodging: $300 x 3 days = $900 Total: $2,400 Create an app that lets the user to select a workshop from one ListPicker and a location from another ListPicker. When the user clicks a button, the app should calculate and display the registration cost, the lodging cost, and the total cost