The greatest common factor of any two even numbers is always even?
true of false

Name the quadrilaterals that have four equal sides.

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Aremote-controlled boat can travel at 4 feet per second in calm water. the boat traveled 48 feet with the current, and then it traveled 16 feet against the current in the same amount of time. how fast is the current?