Respuesta :
dear, this is mathematics but here is my explanation.
21.5 because, 20 is the closest, 20.5 is close, 21 is close, and 21.5 would be the farthest. you just look for the bigger number. hope this helped love
21.5 because, 20 is the closest, 20.5 is close, 21 is close, and 21.5 would be the farthest. you just look for the bigger number. hope this helped love