One good rule that applies to online investing is "Never invest money that you cannot afford to lose."

Each node in a binary tree has ______.

a) exactly one child b) at most one child c) exactly two children d) at most two children

What is the value of average after the following code executes?

double average; average = 1.0 + 2.0 + 3.0 / 3.0; a. 2.0 b. 3.0 c. 4.0 d. 2 e. unknown