In one year, michael earned $6300 as a work study in college. he invested part of the money at 9% and the rest at 7%. if he received a total of $493 in interest at the end of the year, how much was invested at 7%? how much was invested 9%?

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.

What is always true when two whole numbers are subtracted?

Describe the symmetry of the figure. identify lines of symmetry, if any. find the angle and the order of any rotational symmetry.