Find the measure of an angle who's measure is 20 less than the measure of its supplement. a) 62 b) 28 c) 80 d) 50

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

Me 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.

Alex measured the length of an item to be 3.7 cm. the actual length is 3.5 cm. what is alex’s percent error?