The zonda information and telephone company (zi& t) calculates a customer’s total monthly cell phone
charge using the formula,
c = (b + rm)(1 + t),
where c is the total cell phone charge, b is a basic monthly fee, r is the rate per minute, m is the number
of minutes used that month, and t is the tax rate.
solve for m, the number of minutes the customer used that month.

Pete is making decorations for a dinner party. the instructions tell him to use 9 flowers for a medium-sized decoration. complete each statement to adjust the flowers for different-sized decorations based on these instructions.

Needmax 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.

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate. true or false?