3.- En una fábrica de computadoras se planea ofrecer a los clientes un descuento que dependerá del número de computadoras que compre. Si las computadoras son menos de 5 se le hará un descuento del
10% sobre el total de la compra; si el número de computadoras es mayor o igual a 5 pero menor que 10
se le otorga un descuento del 20%; y si son 10 o mas se le da un 30% de descuento. Calcular cuanto
pagará el cliente si el precio de una computadora es de $ 10 000.
Es de blueJ, java Programacion, ayuda porfa es urgente

1. the program must provide following functions to extract some statistics. note that the data_list parameter specified in these functions may be the same for all functions or different for different functions—that is your choice. a skeleton file is provided on mirmir. a) open_file()prompts the user to enter a year number for the data file. the program will check whether the year is between 1990 and 2015 (both inclusive). if year number is valid, the program will try to open data file with file name ‘year.txt’, where is the year. appropriate error message should be shown if the data file cannot be opened or if the year number is invalid. this function will loop until it receives proper input and successfully opens the file. it returns a file pointer and year. i. hint: use string concatenation to construct the file name b) read_file(fp)has one parameter, a file pointer read. this function returns a list of your choosing containing data you need for other parts of this project. c) find_average(data_list) takes a list of data (of some organization of your choosing) and returns the average salary. the function does not print anything. hints: i. this is not the average of the last column of data. it is not mathematically valid to find an average by finding the average of averages—for example, in this case there are many more in the lowest category than in the highest category. ii. how many wage earners are considered in finding the average (denominator)

Type the correct answer in the box. spell all words correctly. under which key category do the page up and page down keys fall? page up and page down keys fall under the keys category.

Terri needs to insert a cover page into her document. where should she go to access the commands to do so? o insert tab, objects group o insert tab, illustrations group o insert tab, pages group o insert tab, media group submit