ok unit conversions
you know that 12 inches are in a foot
and 100 centimeters are in 1 meter
so starting with a)
you start with 2 ft^2
\(2 ft^2 = \frac{2 ft^2}{} \times \frac{12 in}{1 ft} = 24 ft\ in = \frac{2 ft \ in }{} \times \frac{12 in}{1 ft} = 288 in^2\)
