The diameter of a circle is 8 centimeters. What is the circle's circumference?

And employee salary increased by $4500 which represents a 15% raise what is the rate of the increase

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.

Given: pqrs is a parallelogram prove: pr and qs bisect each other at t