Daredevil jumps a canyon

Dan66Stang
Hey guys/girls, I would appreciate some help on a problem that I am having trouble with.

A daredevil jumps his motorcycle across a canyon. If his acceleration is 9.81 m/s^2 downward, determine:

a) the initial speed Vo required to complete the jump.
b) the final speed Vf.
c) The surface angle theta required at the end of the jump to ensure a smooth landing.

Okay here's some info about the jump.

Initial height = Ho = 70m
Final height = Hf = 35m
The canyon is 100m wide

Help would be appreciated, thanks.