How can i fix my headphones if they aren't working/i can't hear any sound when i plug them in?

i've never dropped them or anything. they should be working fine, but they aren't.

What is an rss reader used for? for creating a user account on a social new site

Match the following errors with their definitions. a. #name b. #value c. #ref d. 1. when a formula produces output that is too lengthy to fit in the spreadsheet cell 2. when you enter an invalid cell reference in a formula 3. when you type text in cells that accept numeric data 4. when you type in a cell reference that doesn’t exist

What shows the web address of the page that is currently displayed in the workspace? status window toolbar location bar internet box