Write a calculator program that will allow only addition, subtraction, multiplication & division. Have the user enter two numbers, and choose the operation. Use if, elif statements to do the right operation based
on user input. using python

Jason, samantha, ravi, sheila, and ankit are preparing for an upcoming marathon. each day of the week, they run a certain number of miles and write them into a notebook. at the end of the week, they would like to know the number of miles run each day, the total miles for the week, and average miles run each day. write a program to them analyze their data. your program must contain parallel arrays: an array to store the names of the runners and a two-dimensional array of five rows and seven columns to store the number of miles run by each runner each day. furthermore, your program must contain at least the following functions: a function to read and store the runners’ names and the numbers of miles run each day; a function to find the total miles run by each runner and the average number of miles run each day; and a function to output the results. (you may assume that the input data is stored in a file and each line of data is in the following form: runnername milesday1 milesday2 milesday3 milesday4 milesday5 milesday6 milesday7.)

Read the following scenario, and then answer the question below. you want to send an e-mail to your boss requesting a meeting to discuss a raise. what is the best example of an e-mail to an employer about this meeting? “hey jason. can we chat about getting me more money soon? let me know. peace, meg.” “hello jason. pardon me for sending yet another e-mail today about my need to talk to you about my position and a possible pay increase. i am dying to know when you can talk. sincerely, meg.” “hello jason. i have been with the company for one year and have taken on more responsibilities than outlined in my job description. i would appreciate an opportunity to speak with you about my position. let me know when we can schedule a meeting. you, meg.” “greetings jason! i hope this e-mail finds you well and happy today. i really, really want to talk to you about something important. i am not sure if you have time. i hope you do. get back in touch with me and let me know when we might talk. ever so much for taking the time to read this. sincerely, meg.”

Is the process of organizing data to reduce redundancy. a. normalization b. primary keying c. specifying relationships d. duplication