As far as I can tell, is just asking for the type, so that'd be a tangential line to the globe, or a tangent line, see picture below
The number of solutions of an algebraic equation equals the value of the exponent with the highest power.
Therefore, the answer is 11.
Using the law of Cosines:
c^2 = 10^2 + 8^2 - 2*10*8*cos(105)
c^2 = 205.41
c = SQRT(205.41)
c = 14.3
The answer is D
0.253 in another form is 253/1000.
Hope this helps.