Create a table of expenses for purchasing computer books and magazines. Column A should have the names of the books and magazines whereas Column B should
have number of books and magazines purchased for those titles, Column C should have cost for each book and magazine. Column D should have formula for multiplying cost of each book and magazines by its numbers. D10 should have formula for totaling the cost of all books and magazines. D13 should have formula for giving discount to the University library. D15 should show the total cost after the discount.