Which situation models combining a number and its additive inverse to make 0? a. after spending $20.00, marjorie has $20.00 left in her wallet. b. the temperature at midnight was –8°f. the temperature decreased 8°f by morning. c. tim has $25.00 in his bank account. he withdraws $25.00 from his bank account and gives it to his mother. d. an airplane is at an altitude of 50,000 feet. an hour later, the airplane is still at an altitude of 50,000 feet.

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.