Which of the following is true about "seniority rules"?

Josh’s headmaster fought to keep him, but his hands were tied; under the state’s strict "last in, first out" seniority rules, enshrined in statute, the most recent recruits had to be fired first, regardless of ability.

The proposed fare increase would mean little to wealthy and middle-class residents, who can take advantage of commuter tax breaks and the discount that comes with buying an unlimited monthly card, which now costs $ 116. 50. But it would compound the existing hardship for people who earn too little to pay income taxes and cannot afford the cash outlay needed to buy a monthly pass. Even at current rates, low-income workers and college students are often shut out of the system.