Louisa paid $12.25 for books at a yard sale. She spent $2.50 on a hardcover book, and the rest on 13 softcover books. Each of the softcover books coat the same. What was the cost of a single softcover book?

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2