3. the first four terms of a sequence are shown below. 6, 2, -2, -6 which of the following functions best defines this sequence? (4 points) a) f(1) = 6, f(n + 1) = f(n) + 4; for n ≥ 1 b) f(1) = 6, f(n + 1) = f(n) - 2; for n ≥ 1 c) f(1) = 6, f(n + 1) = f(n) - 4; for n ≥ 1 d) f(1) = 6, f(n + 1) = f(n) + 2; for n ≥ 1

Aaron invested a total of $4,100, some in an account earning 8% simple interest, and the rest in an account earning 5% simple interest. how much did he invest in each account if after one year he earned $211 in interest? select one: a. $200 at 8%, $3,900 at 5% b. $3,200 at 8%, $900 at 5% c. $900 at 8%, $3,200 at 5% d. $3,900 at 8%, $200 at 5%