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?
There are 540 pounds / 30 pounds/crate = 
<gadget id="calculator">540/30</gadget>
<output>18</output>
18 crates of fish needed.
Hence, the total cost for the shipment is $1.5/crate x 18 crates = $
<gadget id="calculator">1.5*18</gadget>
<output>27</output>
27.

<result>27</result>