Write the following integers in order from greatest to least. -3, 0, -2, -8, +3

Can someone tell me if this is perpendicular? !

Which of the following is a solution of z^6 = 64i? 2(cos105° + isin105°) 2(cos120° + isin120°) 2(cos135° + isin135°) 8(cos15° + isin15°)

Which of the following is closest to 32.9 x 7.5? a: 232 b: 259 c: 220 d: 265