9.
[tex] \frac{2}{3} ~pound~of~ice~can~make~1~snow~cone \\\\ \frac{2}{3} * \frac{3}{2}~pound~of~ice~can~make~1*\frac{3}{2} ~snow~cone\\\\ 28~pound~of~ice~can~make~1*\frac{3}{2}*28~snow~cones\\\\~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~=42~snow~cones \\\\ \therefore~Randy~can~make~42~snow~cones[/tex]
10.
[tex] \frac{2}{3} ~of~\$ 27=$\$18 \\\\ \therefore~the ~book~is~on~sale~for~\$18 [/tex]
