True or false please help due in a couple of minutes

What is the exact volume of the cylinder (radius 13 in., height 30 in.)

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.

Which is an accurate comparison of the two data sets? the commute to work is typically shorter and more consistent than the commute home. the commute to work is typically shorter but less consistent than the commute home. the commute to work is typically longer and less consistent than the commute home. the commute to work is typically longer but more consistent than the commute home.