One day, students in mr. tate’s science lab noticed a strange moss growing on a cabinet. during the next few days, the moss grew quickly, covering desks, chairs, and the floor. each day, the class recorded the growth of the moss. 1 on the first day, the moss covered 1 1/2 square feet. on the second day, it covered a total of 3 3/4 square feet. how much more surface did the moss cover on the second day?