A baker has 16 cups of milk and 15 cups of wheat flour on hand. He uses both milk and wheat flour when he makes com muffins and bran muffins. A tray of corn muffins requires 4 cups of milk, while a tray of bran muffins takes 2 cups of milk. A tray of com muffins requires 3 cups of wheat flour, and a tray of bran muffins also requires 3 cups of wheat flour. Let x equal the number of trays of corn muffins he can make, and let y equal the number of trays of bran muffins he can make.​

Design an er diagram for keeping track of information about votes taken in the u.s. house of representatives during the current two-year congressional session. the database needs to keep track of each u.s. state's name (e.g., texas', new york', california') and include the region of the state (whose domain is {northeast', midwest', southeast', southwest', west'}). each congress person in the house of representatives is described by his or her name, plus the district represented, the start date when the congressperson was first elected, and the political party to which he or she belongs (whose domain is {republican', democrat', 'independent', other'}). the database keeps track of each bill (i.e., proposed law), including the bill name, the date of vote on the bill, whether the bill passed or failed (whose domain is {yes', no'}), and the sponsor (the congressperson(s) who sponsored - that is, proposed - the bill). the database also keeps track of how each congressperson voted on each bill (domain of vote attribute is {yes', no', abstain', absent'}). additional information: