[tex]\begin{gathered} \text{Convert first \$4.11 into cents} \\ \$4.11\times\frac{100\text{ cents}}{\$1}=411\text{ cents} \\ \text{Next, divide it by the number of cents per ounce} \\ \frac{411\text{ cents}}{31.5\text{ cents/oz}}=13.0476\text{ ounces} \\ =13.05\text{ ounces (rounded off to the nearest hundredths)} \end{gathered}[/tex]
Therefore, there is 13.05 ounces in the bag of chips.
