27 :
complementary angle : 63
supplementary : 153
105 :
complementary : none cuz complementary angles add to 90
supplementary : 75
18 :
complementary - 72
supplementary - 162
complementary angles add up to 90 degrees and supplementary angles add up to 180
Answer: ten-thousandth's place
I probably spelled it wrong sorry lol. Spelling isn't my thing :)
Hope I helped!
