*Please only answer if you know the answer I'm very strapped for time*

*To avoid confusion please highlight, circle, or box in the correct answer, that way I can differentiate between work and the correct answers*

Several terms of a sequence {an} , are given below (1, - 3, 9, - 27, 81, .} a. Find the next two terms of the sequence b. Find a recurrence relation that generates the sequence (supply the initial value of the index and the first term of the sequence) c. Find an explicit formula for the general nth term of the sequence.