A person measures his or her heart rate by counting the number of beats in . If beats are counted in , what is the heart rate and its uncertainty in beats per minute

The value √10 and √15 are plotted on the number line

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?