Answer :
[tex]\begin{gathered} 2\text{pounds}\to378ft^2 \\ x\longrightarrow_{}7182ft^2 \\ \\ \text{ Thus} \\ x=7182\cdot\frac{2}{378} \\ x=38 \\ \\ \text{ We need 38 pounds for 7182 square feet pounds!} \end{gathered}[/tex]