simplify by performing the indicated operation (answer in standard form) - MULTIPLE QUESTIONS PLEASE HELP.

1/3(x-10)=-4 solve for x with steps

Which of the following is the true for f(x) = 5cos

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