State which of the following sets of ordered pairs represent a function. Set A: (5,2), (4,3), (3, 4), (2,5)
Set B: (-1,-6), (0, 2), (1, 2), (3,6)
Set C: (2, 1), (4, 2), (2, 3), (8,4)

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Someone answer asap for ! 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.