Suppose an investment of $6,000 doubles in value every 8 years. how much is the investment worth after 40 years?

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

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.