1.“Follow-up” or “followup” can be a noun or an adjective.

A) True
B) False
I answered A

2.
Select the 2 correctly punctuated sentences:
A) His followup appointment is in 2 weeks.
B) His follow up appointment is in 2 weeks.
C) His follow-up appointment is in 2 weeks.
I answered B

I disagree with both your answers.

Can you help explain why? Thanks

Go here http://www.answers.com and enter "followup" -- then let me know what you discover.

OK but it says to pick two correctly punctuated sentences..my answers A and C

To check the accuracy of your answers, let's examine each question:

1. "Follow-up" or "followup" can be a noun or an adjective. You answered A, which is correct. "Follow-up" or "followup" can indeed function as both a noun and an adjective, depending on how it is used in a sentence.

2. Select the two correctly punctuated sentences. You answered B. However, the correct answers are B and C. Both option B ("His follow up appointment is in 2 weeks") and option C ("His follow-up appointment is in 2 weeks") are correctly punctuated. The phrase "follow up" can be written either as two separate words with a space in between, as in option B, or hyphenated as a compound adjective, as in option C.

Well done on answering the first question correctly, but please note that the correct answers for the second question are B and C, not just B.