19 divided by 9.5 show work please

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.

Scarlett stopped at a campground along the appalachian trail. the campground had a 12 acre area for tents, divided into 6 equal campsites. scarlett picked one of the sections to pitch her tent. which expression would give you the size of scarlett’s campsite? (more than one answer

Need answer asap (see image) (20 points)