Study.com classes (with assignments) vs TECEP (no assignments)

[Cordero9001]

How difficult or time-consuming are the assignments in study.com business classes? My main concern is finishing as quickly as possible. Here are the classes I'm looking at:

Finance 303: Financial Institutions and Markets (104 quizzes/1 assignment)
vs.
TECEP FIN-331: Financial Institutions and Markets (84 quizzes/0 assignments)

Business 312: Advanced Operations Management (64 quizzes/1 assignment)
vs.
TECEP OPM-301: Operations Management (68 quizzes/0 assignments)

Business 113: Business Communication (125 quizzes/3 assignments)
vs.
TECEP MAN-373: Managerial Communications (103 quizzes, 0 assignments)