Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $77. the perm costs twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

Need 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.

Two sides of a right triangle measure 2 units and 4 units. what is the area of the square that shares a side with the third side of the triangle?