MA American History for $7,500

[Mint Berry Crunch]

Further information suggests a "MA+15/30". My interpretation reads this as if you possess a master's degree, 15 of the 30 credits can be transferred. So the degree COULD be $3,750.

I do not think that's what MA+15/30 refers to here. I think it refers to teachers qualifying for higher pay grades if they have a master's plus 15 graduate credits or a master's plus 30 graduate credits.

I stand corrected - you are right. I found additional information about the naming from a different link further within the college:

"Our new MA+15/30 allows K-12 educators who possess a master’s degree—in any subject—to take courses as non-degree-seeking students, so they can both advance in their salary schedules and study American history with our award-winning historians.

The offering’s name, “MA+15/30,” refers to the number of credits earned beyond a master’s degree. For example, a person with a master’s degree and five three-credit courses would qualify for an MA+15. Most teacher salary schedules award raises for such progressive attainment of education."

Source:
https://www.gettysburg.edu/news/stories?...%2B15%2F30