A. Get the common ratio and the next three terms

1. 128, 32, 8...
2. -2, 4, -8...
3. 16, -12, 9...

B. Write the missing term

1. 16, _, 1, _
2. _, 6, _, 54, 162
3. 1, _, ¹/²⁵, ¹/¹²⁵, _ ​