Can you help me i hhave to find the shapes that are similar to shape a

What is the measure of angle afe? 79 81 91 99

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

Someone answer this asap for the first five terms of a sequence are shown. 5, 11, 23, 47, 95, . . which recursive function defines the nth term in the sequence for n > 1? a. f(n) = f(n - 1) + 6 b) f(n) = f(n - 1) + 48 c) f(n) = 3 • f(n - 1) + 1 d) f(n) = 3 • f(n - 1) - 4