Answer:
Is it not clear that college is totally cool?
Step-by-step explanation:
When you are revising this sentence for formal language you want to make it understable to you and your teacher or tutor. To be precise, you want to avoid short forms of the verb "to be" when asking a negative question. The revised form of this sentence for formal language would be the following:
"Is it NOT clear that college is totally cool?" Here in the bolded auxiliar of the negative question form of the present. If you have more questions feel free to ask please.