Me, i honestly dont know what happened to my laptop. so i got on it a few minutes ago and noticed that when i clicked the mute volume button, the orange light didn't show (it usually does). does anyone know how to fix this?

Which of the statements below describe the guidelines for the use of text in presentation programs? a. do not use numbered lists. b. fonts should be appropriate for your audience. c. limit the number of fonts you use to three or four. d. only use bulleted lists for sales promotions. e. select font sizes that are appropriate for your delivery method. f. use font colors that work well with your background. select all that apply