Which table represents a direct variation function?

The legs of a right triangle measure 6 meters and 8 meters. what is the length of the hypotonuse.

Kelli swam upstream for some distance in a hour.she then swam downstream the same river for the same distance in only 6 minutes.if the river flows at 5km/hr, how fast can kelli swim in still water?

The quotient of 15 and a number is 1 over 3 written as an equation