William is a waiter at a restaurant. Each day he works, William will make a guaranteed wage of $30, however the additional amount that William earns from tips depends on the number of tables he waits on that day. From past experience, William noticed that he will get about $9 in tips for each table he waits on. How much would William expect to earn in a day on which he waits on 13 tables? How much would William expect to make in a day when waiting on t tables? Earnings for 13 tables: Earnings for t tables: