Find the total number of oranges, then the number of bags, then the total amount collected.<br><br>
&bull; Total oranges = 25 &times; 128 = 3200<br>
&bull; Number of bags = 3200 &divide; 8 = 400<br>
&bull; Total collected = 400 &times; $3 = $1200<br><br>
Final Answer: $1200