In pseudocode, how would you display the first character in the string variable "str"?

In pseudocode, how would you display the last character in the string variable "str"?

In pseudocode, how would you use the insert function to change "berry" to "blackberry" for the string variable "str"?

In pseudocode, how would you use the delete function to change "Redmond" to "Red" for the string variable "str"?

What will the following pseudocode result in?

Declare String name = "Sall"
Set name [4] = "y"

Using a subscript to access a specific character of a string is known as _____.