Which sign or symbol will you use to lock cells for absolute cell reference?

How do you take a green screen out of the video while editing?

For her science class, elaine is creating a presentation on weather in the united states. she wants to make the presentation beautiful and interesting by drawing simple cloud or wave shapes. which is the best way for elaine to draw these shapes?

Which best compares appointments and events in outlook 2010appointments have a subject man, and events do notappointments have a specific date or range of dates, and events do notappointments have a start and end time of day, and events do notappointments have a location option, and events do not