Question

I need help on number 9, picture is included!

Answer 1

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

$2 ft^2 = \frac{2 ft^2}{} \times \frac{12 in}{1 ft} = 24 ft\ in = \frac{2 ft \ in }{} \times \frac{12 in}{1 ft} = 288 in^2$