* Your field of study: The required foundational courses vary drastically between majors. A humanities major might have different basic requirements than an engineering major.
* Your institution: Different colleges and universities have different general education requirements and core curriculum structures. Some might require a broader range of subjects than others.
* Your transfer credits (if any): If you're transferring credits from another institution, this will reduce the number of credit hours you need to complete at your current school.
To find out how many credit hours are needed for your "basics," you should:
* Check your university's catalog or website: Look for information on general education requirements, core curriculum, or similar phrases.
* Consult your academic advisor: Your advisor can provide a personalized plan outlining the specific courses and credit hours needed to fulfill your foundational requirements.
In short, there's no universal number. You need to consult your specific school's resources.