[パウロ・コスタ] [edge %92%88%8F%88%99C%C4ܡ%A1%A5֥å%AF%A5ީ] [Piston: MaurÃlio] [NÃÃâ€Å] [bình giảng thÆ¡ văn 9] [ôn luyện ngữ văn 8 theo tác phẩm] [Nguyễn quang thiều] [рак поджелудочной железы тнм] [This year, Henry will save a certain amount of his income, and he will spend the rest. Next year, Henry will have no income, but for each dollar that he saves this year, he will have 1 r dollars available to spend. In terms of r, what fraction of his income should Henry save this year so that next] [m��o v�� tri]