|9-5|-|4-5|

what is the absolute value of this expression?

a)3
b)5
c)-3

Aiden drives to school and back each day. the school is 16 miles from his home. he averages 40 miles per hour on his way to school. if his trip takes 1 hour, at approximately what speed does aiden drive home?

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

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?