Write the method to turn the lightest areas of a picture gray to simulate a fog.

What is the name of your home directory?

Your home directory is the directory you are working in when you first log in on the system. Up to this point you have worked only in your home direc- tory. When called by itself, the cd (change directory; Sobell, page 92) command makes your home directory the working directory (the directory you are working in). The pwd (print working directory; Sobell, page 87) command displays the name of the working directory. Give a cd command to make sure you are working in your home directory. Then give a pwd com- mand to confirm you are working in your home directory.

How can you call special attention to a particularly interesting element of a pie chart?

What will be an ideal response?