Suppose billingAmountis a doublevariable, which denotes the amount you need to pay to the department store. If you pay the full amount, you get $10.00or 1%of the billingAmount, whichever is smaller, as a credit on your next bill. If you pay at least 50%of the billingAmount, the penalty is 5%of the unpaid balance. If you pay at least 20%of the billingAmountand less than 50%of the billingAmount, the penalty is 10%of the unpaid balance; otherwise the penalty is 20%of the unpaid balance. Design an algorithm that prompts the user to enter the billing amount and the desired payment. The algorithm then calculates and outputs the credit or remaining balance. If the amount is not paid in full, the algorithm should also output the penalty amount.

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Write a function processpeople() that takes the name of a file as a parameter. each line of the file corresponds to information about a person. in particular a line contains either a name (in the form lastname, firstname with no spaces in it) or a name (lastname, firstname) and a year. the function will process the file, creating a person object for each line in the file. the function will print information about each line as it processes it, as well as appending the new person object into a list. make sure to use person methods to display information rather than recreating the work you did for the first problem. once the entire file has been processed, the function returns the list of person objects created from the file. if the file is empty, the function should return an empty list. if the input file cannot be opened, the function should print a message to that effect and then return an empty list. the following shows what would be displayed for two example files which have been provided in the link. the file none. txt does not exist. note that your function must work on an arbitrary file that consists of valid lines. you cannot assume anything about the file except that it contains lines that have the format described above.

The file sales data. xlsx contains monthly sales amounts for 40 sales regions. write a sub that uses a for loop to color the interior of every other row (rows 3, 5, etc.) gray. color only the data area, columns a to m. (check the file colors in excel. xlsm to find a nice color of gray.)