Programs vary in how many days and hours a week are required.

The program has varied in length over the course of its run, between two and four hours long at various times.

Individual programs vary in length, but run between one and three hours, once a week.

The fee is $ 15 for the three days, and the program will vary each day.

Programs and policies vary widely from one town to the next.

All programs generally follow a similar pattern, but vary by state.

In fact, the program was perhaps one work too long and varied for the violinist's good.

Programs vary from administration, marketing, insurance, language, health and communication.

Charges made for programs vary but are generally well below retail costs.

Programs like these vary in size and their ability to adequately reach large populations.