The most literal answer would be:
275 ft^2 * 5.68/ft = 1,562 ft
Linear is a straight line measurement and square feet requires a length and width.
100 square feet
A square foot is a common American unit of measurement. A square foot is equal to 144 square inches.
A square foot is 0.0929 square metres approx, whatever the total is.
If the dimensions are in feet then 24 times 60 = 1440 square feet
$4200.00
Zero.
2 square kilometers = 21,527,820.833 square feet.
429 square feet is about 39.855 square meters.
One square meter = about 10.764 square feet.
1 square foot = 0.093 square metres = 929 sq cm.
"Square cubic foot" or feet doesn't make sense. Either you have square feet, or cubic feet.