\begin{tabular}{l|c|}\hline A rectangular floor is 7 yd long and 3 yd wide. Kevin \\ wants to tile the floor with tile sold by the square foot. \\ Use the facts to find the area in square feet. & \( \begin{array}{c}\text { Conversion facts for length } \\ 1 \text { foot }(\mathrm{ft})=12 \text { inches (in) } \\ 1 \text { yard }(\mathrm{yd})=3 \text { feet ( } \mathrm{ft}) \\ 1 \text { yard }(\mathrm{yd})=36 \text { inches (in) }\end{array} \) \\ \hline\end{tabular}

To find the area in square feet, first convert the dimensions of the floor from yards to feet. Since 1 yard equals 3 feet, the length of the floor is \(7 \text{ yd} \times 3 \text{ ft/yd} = 21 \text{ ft}\), and the width is \(3 \text{ yd} \times 3 \text{ ft/yd} = 9 \text{ ft}\). Now, the area is calculated as follows: area = length × width = \(21 \text{ ft} \times 9 \text{ ft} = 189 \text{ ft}^2\). Imagine Kevin standing back and admiring his freshly tiled floor while calculating! One common mistake when dealing with area conversions is forgetting to convert both dimensions the same way before multiplying. Always double-check your units! Just remember: for flooring, it’s feet that matter, not yards. Happy tiling!