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.

Preliminary data from the Association of American Publishers showed the growth of sales of e-books for adults had slowed considerably in 2013, to 3. 8% . Including children’s titles, e-books actually dropped by 1%. Sales of hard-cover books rose by 9. 7% but were down for paperbacks. E-books accounted for around 27% of the publishing market.