Maria and edwin have 23.00 each to spend at a book fair where all students receive 25% discount. they both want to purchase a copy off the same book, which normally sells for 26.50 plus 10% sales tax. to check if she has enough to purchase a book , maria takes 25% of $26.50 and subtracts that amount from the normal price. she takes 10% of the discounted selling price and adds it back to find the purchase amount. edwin takes 75% of the normal price and then computes 110% of the reduced price. is maria correct? is edwin correct? do they have enough money to purchase the book? explain your answer using complete sentences and show your work