Find the length of each arc.
1)
270°
6 km

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.

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

In an improper fraction, is the numerator equal to, less than, or greater than the denominator