3 n 2 12 July 8, 2019 16 32 64 128 N 3 2 125 N 3 1 2 12 N 3 3n 2 2n 120 N 3 3n 2 2n 120 0 A1 =- 3 d 2 n 12 N 3 12n 2 48n 64 N 3 n 2 12n 3n 3 12n 2 2n 8 3n 3 12n 2 30n 3n 3 12n 2 15n 3 3n 2 12n N 3 8n 2 12n 0 N 3 8n 2 12n 2 3 n 12 solve the proportion
