It takes 3 minutes for Ann to run 800 meters without sandbags. If Ann runs 800 meters with sandbags, it will take 2 more
minutes. What is the speed for running with sandbags?
m/min

During which interval are the persons represented by the graph not moving? a) 0 to 0.5 hrs b) 1.5 to 2 hrs c) 2 to 2.5 hrs d) 4.5 to 5 hrs

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.

If the new moon happens on january 15th, what shape will it be on february 6th?