System of equations: Kenny’s phone company has a monthly fee.
In the last month, Kenny paid $13.95 and he used his cellphone for 150 minutes.

Jacob used his phone for 210 minutes and paid $17.55.

Now, create a system of equations to figure out the amount per minute and the monthly fee.

Let x equals the cost per minute and y equals the month fee.

Now 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.