Pl quick!! Which of the following could be solved by using the equation –5 + 5 = 0?
A. Jack made five piles with five cards in each pile.
B. Maribeth bought five bracelets and five necklaces.
C. Jessie read five books today and five books the day before.
D. Sam lost five points and then gained five points.

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

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.

If two angles of a triangle have equal measures and the third angle measures 90°, what are the angle measures of the triangle? a. 60°, 60°, 60° b. 45°, 90°, 90° c. 30°, 30°, 90° d. 45°, 45°, 90°