2. You are in a hot air balloon that is 600 ft. above the ground where you can see your friend. If your
angle of depression is 20 degrees how far is he from the point on the ground below the hot air balloon?

Alonso walked with his friend andy one day, and wanted to compare their speeds. alonso walked 3 miles in one hour, and andy walked 2 miles in 2 hours. complete the table to graph the relationship for each person.

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia