A store owner paid $20 for a book. She marked up the price of the book by 15% to determine its selling price. What is the selling price of the book? Numbers only.

The diagram represents the polynomial 4x2 + 23x – 72. what is the factored form of 4x2 + 23x – 72? (4x + 8)(x – 9) (4x – 8)(x + 9) (4x + 9)(x – 8) (4x – 9)(x + 8)

Atotal of 766 tickets were sold for the school play. they were either adult tickets or student tickets. there were 66 more student tickets sold than adult tickets. how many adult tickets were sold?

Which of the following represents the length of a diagonal of this trapezoid?