Find the angle between v and w. Round your answer to one decimal place, if necessary. 4) v = 2i + 5j, W = -7i + 8j 4) A) 21.5 B) 63.0 C) 31.5 D) 73.0 5) v = -5i + 7j, W = -61 - 4j 5 ) A) 20.7 B) 110.8 C) 88.20 D) 90.90 6) V = -2i, W = j 6) A) 270 B) 90 C) 0. D) 180