CRYING RIGHT NOW PLEASE HELP!!! Find the first four terms in each sequence. Determine whether each sequence is arithmetic, geometric or neither.



a (1) = -8

a (n)= a(n-1)-11 , n >_ 2



b (1) = 11

b (n) = b (n -1 ) • 2.5, n >_ 2



c (1) = 23

c (n) = c (n - 1) + 2n, n ≥ 2



d ( 1 ) = -2

d (n) = d(n-1) / 2 + 3, n >_ 2 w