Write three ordered pair solutions to the inequality`y\le9.2`

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.

Can someone me out here and the tell me the greatest common factor

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply