The Twits have an income of m per week. Let x be food and let y be all other goods. Let px be the pr… Show more The Twits have an income of m per week. Let x be food and let y be all other goods. Let px be the price of food and py be the price of other goods. The Twits can use food stamps to buy food at a price of px(1s) for up to x • Show less