a glazier advanced down a mountain from the elevation of 2010m to 1780m in 3 years what is the rate of change

Mr. chiu made a dot plot after asking his students a question. based on the dot plot, which statements are correct? check all that apply. eleven students answered mr. chiu's question. twelve students answered mr. chiu's question. three people studied for two hours. three people studied for three hours. everyone who responded studied for at least one hour. four people studied for four or more hours