Someone pls help. Can u also put the working out if possible?:)

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

Find the solution on the interval [0, 2pi)

Which expression can be used to find the cost of .75 kilogram of cheese at the price of $6.40 per kilogram?