Ravi made 6 identical necklaces, each having beads and a pendant. the total cost of the beads and pendants for all 6 necklaces was $40.80. if the beads cost a total of $22.20, how much did each pendant cost?

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan

If f(x) = 6x – 4, what is f(x) when x = 8? a2 b16 c44 d52

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.