conversations.from: human
conversations.value: Lizzy has to ship 540 pounds of fish that are packed into 30-pound crates. If the shipping cost of each crate is $1.5, how much will Lizzy pay for the shipment?
conversations.from: assistant
conversations.value: There are 540 pounds / 30 pounds/crate = 18 crates of fish needed.
  Hence, the total cost for the shipment is $1.5/crate x 18 crates = $27.