So owl is a carnivorous bird. There are exceptions to this though, as some species such as Burrowing Owls may feed on seeds and fruits when prey is lacking, but for the most part they are carnivorous though.
There are 16 ounces in one pound. So to get one pound of cashews, you need to buy 16 ounces. If each ounce costs $.40: 16 ounces x $.40 per ounce = $6.40 So it costs $6.40 per pound of cashews. No, you can't buy a pound.
On average, a half-sheet Costco cake is priced between  $16 to $20 for each cake depending on the Costco bakery location and the flavor choice. According to members on Babycenter.com, most noted that it will cost about $18 for a cake that serves up to 48.