Plz help what is the volume of this container

Samantha swam upstream for some distance in one hour. she then swam downstream the same river for the same distance in only 12 minutes. if the river flows at 4 mph, how fast can samantha swim in still water?

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?