Zack is taking a test in which he answers questions at a rate of question per minute. How many questions can he answer in 6 minutes? 3 12 6 4

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.

Select the sequences that are geometric.

The trigonometric ratios sine and secant are reciprocals of each other