Can someone please help me with this problem?

Julian and Morgan obtain a 30-year 4/1 ARM at 3.9% with a 3/13 cap structure in the amount of $182,345. What is the remaining balance on the mortgage after the first four years?

Question

Can someone please help me with this problem? 

Julian and Morgan obtain a 30-year 4/1 ARM at 3.9% with a 3/13 cap structure in the amount of $182,345. What is the remaining balance on the mortgage after the first four years?

anonymous · Answer

I believe the formula for this problem is

anonymous · Answer

But I don't know if nt is 4 or 30

anonymous · Answer

anyone know about financial algebra?

anonymous · Answer

or am i just gunna have to "fall" out this 29 story apartment?

mathmale · Answer

You might try re-posting this question, using the title "Help with financial algebra."  Otherwise it's too easy for your post to get lost in the "run-of-the-mill" variety.  Wish I were in a better position to help you with the math itself.  

Hope you have a good reference to consult:  a textbook?  online learning materials?  class handouts?