Find the area of the polygon. I would like both answers and how to get them (show work).

Thanks!

Afunction is given: f(x)=3x+12 a. determine the inverse of this function and name it g(x) b. use composite functions to show that these functions are inverses. c. f(g(– explain: what is the domain?

Which expression is equivalent to sq-80

Can someone check if i did this correct. it’s number 4 if you’re wondering.