Bob made 3 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 3 necklaces was $20.40 . If the beads cost a total of $8.70 , how much did each pendant cost?

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd