Spreadsheet questions:

For $x=2$ it takes hours

For $x=3$ it takes

For $x=2$ and a $45\%$ LC$,$ it takes hours

For $x=3$ and a $45\%$ LC$,$ it takes

hours

For $x=2$ and a $90\%$ LC$,$ it takes

hours

For $x=3$ and a $90\%$ LC$,$ it takes

hours