8.
According to the 10 20 30 rule of PowerPoint presentations, how long should a presentation last that has 10 slides?
no more than 6 minutes
exactly 10 minutes
no more than 20 minutes
exactly 30 minutes
According to the 10 20 30 rule of PowerPoint presentations, how long should a presentation last that has 10 slides?
no more than 6 minutes
exactly 10 minutes
no more than 20 minutes
exactly 30 minutes