Find a power series solution y = ∑ n = 0 ∞ c n x n of the given differential equation. the power series solution of y ′ − 9 y = 0 is y = c ( a + b x + c x 2 + d x 3 + ⋯ ) . give the values for a, b, c, and d. give answers as integers or reduced fractions

Robert plans to make a box-and-whisker plot of the following set of data. 27, 14, 46, 38, 32, 18, 21 find the lower quartile, the median, and the upper quartile of the set? lower quartile: 19.5; median: 29.5; upper quartile: 42 lower quartile: 14; median: 27; upper quartile: 46 lower quartile: 18; median: 27; upper quartile: 38 lower quartile: 16; median: 29.5; upper quartile: 42