I have an assignment with tasks and description below. Also i attached a original excel file and the data I have adjusted to build my regression model $($creating dummy variables condition $0,1$ and adding landarea$^2,$ together with log$($saleprice$).$ Can you tell me if that model is best optional for my data. If yes, how can I interpret it$?$ If not, how should I fix it and interpret it$?$ Also I$\text{'}$m wondering whether should I use log$($saleprice$)$ as Y or just saleprice by itself, as the saleprice by itself returns the R$^2$ higher $(68\%).$ Thank you!