I understand this question is really easy but the answer I found isn't one of the options and I have spent 30 minutes on this assignment and if I get this question wrong I have to retake the whole thing pls help the answer I found is 210 but it's not on there pls help

I understand this question is really easy but the answer I found isnt one of the options and I have spent 30 minutes on this assignment and if I get this questi class=