Amir believes that good and evil are two opposing forces in the universe, and he tries to follow Ahura Mazda as much as possible. What religion is Amir practicing?

Which terms are used to identify pure substances

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.

Arectangle has a diagonal 20 inches long that forms angles of 60 and 30 with the sides. find the perimeter of the rectangle. for geometry