Melanie compared the price of her favorite book at two bookstores, BookWorm and Reading Nook. She found that the ratio of the price at BookWorm to the price at Reading Nook was 15 : 17. If the book cost $51 at Reading Nook, how much did it cost at BookWorm?

20 ! need which shows a difference of squares? 10y^2-4x^2 16y^2-x^2 8x^2-40x+25 64x^2-48x+9

What is the measure of angle afe? 79 81 91 99

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.