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.
Many business offer eye exam with cheap prices, such as walmart. If you find costco is near you in your area, they will not cost you too much. Speaking of costco, each one has an Independent doctor, so the price of an eye exam is different and the average cost range from $50 to $150.