What’s the fractions ?

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.

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account