Astore 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 bookpart ba 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?

Part A)

$15 ÷ 40% =  15×.4= 6

15+6= 21

Part B) $38 × .25=9.5

38-9.5=28.50

28.50×.06=1.71

28.50+1.17=30.21

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