Leslie is investigating which brand of cell phone has the longest lasting battery. WHAT IS A TESTABLE SCIENTIFIC QUESTION for Leslie’s investigation

Ann walks 80 meters on a straight line 33 ∘ north of east starting at point 1. draw ann's path. represent ann's walk with a vector of length 80 meters. draw the vector starting at point 1. the length given in the display is in meters.

Anybody wanna ? (picture included? )

What happens to the vapor pressure of a substance when its surface area is increased at constant temperature?