Awheel spines at a rate of 41 revolutions per minute. how many revolutions per hour does it spin

The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?

Line wx is parallel to line yz. if m

Geometry - finding area of regular polygons and sectors (check my math, i can’t find the error)