Which option in the PowerPoint allows users to configure the number of the columns and row manually using numerical values

Why should characters such as / \ " ' * ; - ? [ ] ( ) ~ ! $ { } < > # @ & | space, tab, and newline be avoided in file names?

Avariable definition defines the name of a variable that will be used in a program, as well as

For a typical middle-income family, what is the estimated cost of raising a child to the age of 18? $145,500 $245,340 $304,340 $455,500