Eva is a waitress at a restaurant. Each day she works, Eva will make a guaranteed wage of $30, however the additional amount that Eva earns from tips depends on the number of tables she waits on that day. From past experience, Eva noticed that she will get about $5 in tips for each table she waits on. How much would Eva expect to earn in a day on which she waits on 12 tables? How much would Eva expect to make in a day when waiting on tt tables?