Question 1127454
Current restaurant,  {{{60*90 ft^2}}}, or 5400 square feet


New restaurant,  {{{2*60*2*90 ft^2}}}, or{{{ 4*5400}}} or 21600 square feet



Difference:
{{{2*2*60*90-60*90}}}

{{{4*60*90-60*90}}}

{{{(4-1)(60*90)}}}

{{{3(5400)}}}

{{{16200}}} {{{ft^2}}}

-


{{{21600-5400=16200*ft^2}}} {{{difference}}}