An office manager spent $650 on a new energy-saving copier that will reduce the monthly electricity bill for the office from $112 to $88. how many months will the copier pay for itself?

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.

What is the measure of one interior angle of a pentagon

Percent increase and decrease. original number: 45 new number: 18