Chang made 4 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 4 necklaces was $20.40. If the beads cost a total of $11.60, how much did each pendant cost?

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

Kayla and alberto are selling fruit for a school fundraiser. customers can buy small boxes of grapefruit and large boxes of grapefruit. kayla sold 3 small boxes of grapefruit and 1 large box of grapefruit for a total of $65. alberto sold 1 small box of grapefruit and 1 large box of grapefruit for a total of $55. what is the cost each of one small box of grapefruit and one large box of grapefruit?

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.