The ____ operator reverses the sign of a number.

When you crop a picture, you remove an unwanted or unnecessary portion of the image

Indicate whether the statement is true or false

Which of the following statements describes block scope?

a. It begins at the opening { of the class declaration and terminates at the closing }. b. It limits label scope to only the method in which it is declared. c. It begins at the identifier's declaration and ends at the terminating right brace (}). d. It is valid for one statement only.