621 + 121 = 2- 14 = 89 - 23 = 27 + 47 + 17 =
910 + 110 = 35 + 13 = 716 + 332 = 2425 - 1325 - 625 =
(Ⅰ)求A;
(Ⅱ)若a= 7 ,b=2,求△ABC的面积.
—What’s wrong with the baby, doctor?
—_______. Just a slight cold.