Is 0.568568 rational or irrational

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?

On a piece of paper, graph . then determine which answer choice matches the graph you drew

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?