Cusurig iyics
use the interactive protractor to answer the questions
below
the measure of zpqr in degrees is
angle pqr is aan)
angle,
80 po 60
30 1
120 1
130
100
10 100 150 tan
20
20
to

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?