Serendipity booksellers software development project— part 9: a problem-solving exercise for this chapter’s assignment you will enhance the program’s point-of-sale and reporting capabilities. 1. allow multiple transactions currently the cashier function only calculates the sale of one title. modify it so that multiple titles may be purchased. after the data for each book is entered, the function should ask if there are other titles being purchased. if so, it allows the user to enter the data for another book. if not, it calculates the sale subtotal, tax, and total.