Dave buys a baseball for $15 plus a 8% tax. mel buys a football for $20 plus an 8% tax. enter the difference, in dollars, of the amounts dave and mel pay including tax. round your answer to the nearest cent.

The figure below shows rectangle abcd and the triangle eca on a coordinate plane.which of the following expressions represents the perimeter of triangle of triangle eca in units

Needmax 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.

1. find the area of the unshaded square 2. find the area of the large square 3. what is the area of the frame represented by the shaded region show