For every 5.7 pounds, the exchange rate is $6.40
If 1 pound is exchanged, the amount received is
[tex]\frac{6.40}{5.7}\text{ dollars}[/tex]If 32.8 pounds are exchanged, the amount received in the dollar is
[tex]\begin{gathered} \frac{6.40}{5.7}\times32.8=36.8281 \\ \approx36.3 \end{gathered}[/tex]So, the amount received is $36.3 in exchange for 32.8 pounds