The ratio given in the question is
Three pounds of cheese to 8 pizzas, or better put,
3 : 8
To complete the table;
[tex]\begin{gathered} \frac{3}{8}=\frac{18}{x} \\ \text{Cross multiply and you have;} \\ x=\frac{18\times8}{3} \\ x=48 \end{gathered}[/tex][tex]\begin{gathered} \frac{3}{8}=\frac{22.5}{y} \\ Cross\text{ multiply and you have;} \\ y=\frac{22.5\times8}{3} \\ y=60 \end{gathered}[/tex][tex]\begin{gathered} \frac{3}{8}=\frac{27}{z} \\ \text{Cross multiply and you have;} \\ z=\frac{8\times27}{3} \\ z=72 \end{gathered}[/tex]The figures to complete the table are derived as, 48, 60 and 72
