Based on the rate at which Jennifer is paid for editing manuscripts. she is most likely on a fixed-ratio schedule.
A fixed-ratio schedule when it comes to reinforcement means that a person is paid when they complete a certain number of tasks.
In Jennifer's case, she is paid when she completes three pages of editing which is a set number of tasks.
This is therefore a fixed-ratio schedule.
Find out more on reinforcement schedules at https://brainly.com/question/6356413.