Answer:
5) x=30
6) x=50
7) x=59
8) x=31
9) m<1=75 because they're corresponding and m<2=105 because it's supplementary with the 75 degrees angle
10) m<1= 120 because they're corresponding and m<2=60 because they're consecutive interior angles and add up to 180
in questions 5-7 you just set them equal to each other
in 8, you had to subtract 105 from 180 and then set 75 equal to 3x-18