Find the length of side xx in simplest radical form with a rational denominator.

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?

Abcd ≅ klmn ≅ pqrs ≅ wxyz given that information, which figures are reflections of abcd?

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80