13) Create a Nested IF Function to calculate the Grades. Use the following Information; 1. If the Total is greater than equal to 85 , then the student gets an A+ 2. If the Total is greater than equal to 80, then the student gets a A

For this system: Airline Reservation System For Customers Book Flights Buy Tickets Make Payment Print Boarding card Cancel booking For management staff Create new Flights Modify Flights Details Flights cancel .... Write one scenario and design the corresponding Sequence Diagram that describe one of the main use cases.

Separate research methods from methodology, and refer to the many sorts of study using methods and techniques (e.g., library research, field research, and laboratory research).