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15. An employee's weekly gross pay is determined by multiplying the hours worked by the rate of pay. Overtime (hours worked more than 40) is paid at 1.5 times the hourly rate. Answerthe following questions: Short Answers List the essential inputs and outputs. List sample data that includes boundary values. B. A. Draw a storyboard to label and accept the inputs, and calculate and display the outputs. Identify and label the input and output text boxes, and any buttons on the storyboard. C. Draw a class diagram for the Gross Pay object. D. Draw a flowchart to calculate the gross pay. E. Write the pseudocode that corresponds to the flowchart in step d above. F. Draw an event diagram for the Gross Pay event. 16. Draw a generalization hierarchy chart for a book object. include a superclass and at least two subclasses. Below the chart, list and label attributes methods, a trigger, and an instance of a book 18. Draw an event diagram for an elevatorrequest. Include the user pushing the button as a trigger, that light coming on, and the elevatorsensing the request. Follow the event through the elevator arriving at the floor and the doors opening. 19. Write the pseudocode and then draw a flowchart for a program that accepts the age of the user and then tests that value to display one of the following three categories:(65 years)