If you copy and paste a Block from drawing A into drawing B that already has a Block with the same name but with different contents, the following will happen:

___ allows you to change the placement of the tools that you commonly use and to add new tools that can improve your productivity.

You need to determine the total length of a polyline.

Is it allowed to change the scale of the locked Viewport?

You have a closed Spline and you need to change it to an open Spline.

Which system variable settings determines how points are displayed?

What method would you use to prevent objects on a particular layer from being edited, yet remain visible?

What command is used to change the point of view around the center of the viewport?

After creating a user coordinate system, which command line option allows you to save it for future use?

When you create a new dimension style, what components can you not customize?

What is the file extension for AUTOSAVE files?