O True False Question 15: If 01 =2 and an = 30n-1 - 2, find a4. a) 5 b) 10 c) 28 d) 44 e) 82 Oa Ob OC Od De Question 16: a Type here to search OConvert (-6, -7) from Cartesian coordinates to polar coordinates. Round the length to the nearest 0.01. Express the angle 0 in degrees where 0 is between 0' and 360, and round to the nearest 0.1 degree. Do not enter the degree symbol in the answer. angle=