Hello!
2.x^2 - 1 = 2.3^2 - 1 = 2.9 - 1 = 18-1 = 17
Good luck!
It would be 98 degrees.
this is because on the top line their is a spot that we don’t know the angle of and next to it is an angle of 82 degrees and a line is equal to 180 degrees so all you have to do is subract 82 from 180.
hope this was correct & helped out
