## Algebra 1: Common Core (15th Edition)

Length (ft)= y Area (square ft)=$y^{2}$ $430= 3\times y^{2}$ $430\div3= 143.33...$ $y^{2}=143.33...$ $y^{2}=143 \frac{1}{3}$ $y= \sqrt (143 \frac{1}{3})$ $y=11.972$ $y\approx12$