Given:
Total money that Ella has : $6.11
The money she spent on snacks is $3.28.
The objective is to find how much money does she left over after buying her snacks, so,
Money she is left with= total money - money spent on snacks.
[tex]\begin{gathered} \text{Money she is left with= \$6.11-\$3.28} \\ =2.83 \end{gathered}[/tex]Therefore, Ella is left with $2.83 after buying her snacks.