On Friday, the temperature changed at a rate of -4°F per hour. How many hours did it take for the change in temperature to be -24°F?

Find the midpoint m of z1=(8+5i) and z2=(12+3i)

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

This stem-and-leaf plot represents the heights of the students on ralph's basketball team. one student's height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.