Solve x to the power of 2 = 4 where x is a real number. Please help fast

Hurry which expression is equivalent to 3√x^5y?

The width of a piece of rectangular land is 5m shorter rhan 1/3 of its length .find the width of the land if the length is 60m,150m.

Barbara is tiling her craftroom floor with square tiles.she wants 6/10 of the square tiles to be red.if she used 18 red tiles,how many square tileswill be used to cover the floor?