Answer:1: 14,21,28,25 - Arithmetic - 7 - 42, 492)-1, 6, 36, 216 - Geometric - (-6) - (-1,296), 7,7763)-1, 5, 25, -125 - Geometric - (-5) - (-625), (-3125)4) 8,2,-4,-10 - Arithmetic - (-6) - (-16), (-22)5) 512, 128, 32 - Geometric - 4 - 8, 2Step-by-step explanation:To get common difference Arithmetic - Minus the terms to get the common difference Geometric - Divide the terms to get the common difference To get the next terms Arithmetic - Add the common difference to the last term Geometric - multiply the common difference with the last term