Si una mujer gana más que su marido

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?

Which is the graph of this function 3 square root of x plus one if

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.