Hi please help me with this one. It seems the square root is messing me up and I'm kind of lost between whether to use the root test or ratio test

Question 17, Instructor-created question HW Score: 24.01%, 6.96 of 29 points Points: 0 of 1 (- 7)"(x - 9) For the power series E find (a/the radius of convergence, (b) the interval of convergence, (c) all x-values for which the series converges absolutely, and (d) all x-values for which the s n = 1 n . Vn converges conditionally