After school marcy can start walking dogs by 3: 15pm she wants to be dont walking by 6: 00 in time for dinner if she does one dog per half an hour and allows herself 15 minutes after each walk, how many dogs can she walk before dinner time?

7. the area of the playing surface at the olympic stadium in beijing isof a hectare. what area will it occupy on a plan drawn to a scaleof 1: 500?

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.

What is the slope of the line passing through the points (-5, 7) and (-3,5)?