My attempt (done on paper, without looking at the other solutions:
1) 35167
2) 15
3) -4
4) 91
5) a bisector
6) 157.075 (approximately)
7) (Not doing cube roots. Nope. Nuh-uh)
30763
9) 17
10) 2380
I have all my work available to scan in if I am disbelieved. *grins*