Identify which of the 12 principles is illustrated in each statement. People in Europe drive Smaller cars than in the United States because the price of gasoline is higher You decide to take only three instead of four classes this semester due to your busy work schedule. If you take the babysitting job on Friday night, then you will be unable to go to the party with your friends. Jack and Jane are roommates. jack makes breakfast for both of them each day, and Jane makes dinner for both of them each day. In most cases, the open checkout lanes at the grocery store all have the same number of customers waiting to pay for their items. The U.S. government's regulation of air pollution has improved the quality of the air over the years. The government lowers the income tax rate and, as a result, consumers increases their spending on goods and services