No links please need help

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.

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

The monetary value earned for selling goods or services to customers is called a.) revenue b.) assets c.) money d.) accounting