Hope this helps well i know that a 5 lb bag of potatoes is $2.55 well the supply is how much it cost to supply so depending on how much it cost to supply them they up the price to get a little more money to keep supply full and also the demand is how many people want that particular thing hope it helps with your question
I believe that the Baby needs to be burped. If a baby isnt burped it builds up air and gas in the stomach making it uncomfortable for babies. They tend to hold their legs up in the air to pass gas.
