Find the 8th 15th 50th and a formula for the nth term of these Arithmetic progression
a.3,7,11...
b.-5,-3 1/2,-2...
c.1/2,5/6,1 1/6,...

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

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.