Which is better for homework, or slader, and why?

Im doing this last minute and literally none of my neighbors or people that my dad works with use excel so if anyone could me make up an example

To become an audio technician, the most successful tactics might include the following. (select all that apply). learning how to persuade other people gaining different types of experience in audio technology learning as much as possible about art history establishing a reputation as a reliable professional

What are three software programs for mobile computing?