Should I take math online for a summer class at CU Boulder?

Hi everyone, I’m trying to figure out if I should take business calc online or in class for the 5 weeks. Is it true that the exams for online classes are taken online? Also if anyone knows the math software used online I’d appreciate that info too. Also please post any experience with CU math online classes. I’ve taken math online before at other colleges but I’m looking for CU online math experience. Thanks!