A qbasic program to tranverse a binary tree

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Linux is distributed under gnu gpl. why is this important? a. it ensures that only torvalds can profit from the sale of linux b. it prevents unknowledgeable users from downloading programs they don't know how to operate. c. it provides protection for the developers who created linux. d. it states that anyone can copy, modify, and share the program if changes are made public.

Convert 11001110(acdd notation) into decimal

In the rgb model, which color is formed by combining the constituent colors? a) black b) brown c) yellow d) white e) blue