Use two unit multipliers to convert 144 square feet to square miles. Round any decimal answer to two places.
For future reference, there are \(5280ft=1mi\)
For area, though, these quantities are squared, so \(27878400ft^2=1mi^2\)
\(144ft^2*\frac{1mi^2}{2787400ft^2}\approx5.17*10^{-6}mi^2\)