Please help . I’ll mark you as brainliest if correct

For their homecoming parade, the students of U-Math have created a colorful banner, 51 meters in length, that is made of two pieces of parachute material. The short piece is 21 meters shorter than the longer piece. Find the length of each piece.

Length of long piece= 36 m

Length of the short piece= m

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

Lena reflected this figure across the x-axis. she writes the vertices of the image as a'(−2, 8), b'(−5, 6), c'(−8, 8), d'(−4, 2).

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.