7.5 xxx. 8.0 xxx 8.5 xxx 9.0 xxxxx 9.5 xxxx
For the 1st one, its 1, and 2
For the 2nd question its -3
im not sure I'd need to see the figure
Y=10°
If we're solving for the ninety degree angle, which I seem to doubt, then if 3x=90 then 2x=60 giving a missing total of 30. 30/3 equals 10