Winnie collects data from a random sample of seventh graders out of 60 responders 18 attended after school programs of the 220 graders attending winnies school how many would be expected to attend after school programs

The tiles below are pieces of a normal ecg tracing representing a little less than two heartbeats at a resting rate of 80 bpm. arrange the tiles in their correct order. rank from first to last. do not overlap any tiles.

How is working backward similar to solving an equation?

Which statement accurately explains whether a reflection over the y axis and a 270° counterclockwise rotation would map figure acb onto itself?