Mathematics, 01.08.2019 18:00 millie54
Katie and margarita have $20 each to spend at students choice bookstore where all students receive a 20% discount they both want to purchase a copy of the same book which normally sells for 22.50 plus 10% sales tax to check if she has enough to purchase the book katie takes 20% of 22.5 and subtract that amount from the normal price she takes 10% of the discount to selling price and add to back to find the purchase amount. margarita takes 80% of the the normal purchase price and then computes 110% of the reduced price. is katie correct? is margarita correct? do they have enough money to purchase the book?
Answers: 1
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