Brainliest if you answer first.
420 x 420

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.

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer

Ateacher noticed 5/8 of the students were wearing either blue shorts or white shorts. write two different ways this could be done.