Question

Carol buys a reference book that originally cost $87.50 for 15% off. She pays a sales tax of 4.5%. What is the total cost of the book?

Answer 1

one approach
original price = whole = 100%
15% off = new price of 85% of original
tax = 4.5% so add 4.5% of 85% of original

Cost = 104.5% of 85% of 87.50 =

Answer 2

thank you

Answer 3

you are welcome.