Some good answers so far.
Question 3: For a coordinated 45ºbanked turn, for any glider, if flown at the minimum SINK SPEED for the angle of bank, how much does the glider SINK RATE increase over the level flight minimum SINK RATE?
A. 9% more than the level flight minimum sink rate
B. 19% more than the level flight minimum sink rate
C. 29% more than the level flight minimum sink rate
D. 48% more than the level flight minimum sink rate
E. 68% more than the level flight minimum sink rate
F. I do not have a clue