In some types of jobs, having a college or higher-level
degree helps people to earn more money.
Teachers, accountants, business people, engineers, scientists, doctors, and lawyers generally earn more money when they have a higher-level degree.
People with these jobs tend to earn a salary rather than an hourly wage.
Tutors, waiters, and cashiers tend to earn an hourly wage rather than a salary.
The easier it is to find an item, the less expensive the item tends to be.
The harder it is to find an item, the more expensive the item tends to be.