Complete the following on paper to be collected Friday, 10/17/14

1) Insert the following numbers into a Binary Search Tree in the order given:

90, 93, 92, 91, 94
17, 13, 14, 15, 16,
42, 44, 43, 56, 47,
35, 59, 77, 82, 72

2) What is the height of the resulting tree? 
3) What is the optimal (smallest) height of a tree with 20 nodes?