Ronny read for 2.75 hours yesterday his older brother read for 1.18 hours and his younger brother read for 0.43 hours.

round each time to the nearest tenth of an hour.

about how long did the three brothers read yesterday altogether?

a.
about 1.2 hours

b.
about 1.6 hours

c.
about 4.2 hours

d.
about 4.4 hours

Find x & pleeeeaaaassseeee me !

Which system of linear inequalities is represented by the graph? + l tv x-3y > 6 and y > 2x o x + 3y > 6 and y o x-3y > 6 and y> 2x o x + 3y > 6 and y > 2x + 4 la +

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.