A store owner paid $15 dollars for a book. she marked up the price of the book by 40% to determine it's selling price.
Part A
what is the selling price, in dollars of the book
Part B
A customer buys a different book that has an original selling price of $38. The book is discounted 25%. The customer must pay a 6% sales tax on the discounted price of the book.
What is the total amount, in dollars, the customer pays for the discounted book?