Cost for dental hygiene courses - all dental hygiene courses in the online program are $368.70/credit (includes tuition and fees) for Fall 2022 - Summer 2023: https://www.mnsu.edu/university-life/campus-services/campushub/bills-payment/tuition-and-fees/undergraduate-tuition-fees/fully-online-programs/
Cost for general education - some sections of courses are the same as the online program courses (complete an advanced search for courses in e-services and select location "Online Learning Solutions"). Others follow this fee schedule: https://mankato.mnsu.edu/university-life/campus-services/campushub/bills-payment/tuition-and-fees/undergraduate-tuition-fees/mankato-campus-course-offerings/
You might have to apply for 100% Online Learner Status to get in-state tuition if you don't live in a state with reciprocity and taking courses not following the online program fee schedule: https://mankato.mnsu.edu/university-life/campus-services/campushub/bills-payment/tuition-and-fees/online-learner-request/