Secured Transactions questions.

1. Smith, is a farm equipment dealer in St. Louis County, Minnesota.On August 16, 2017, Smith sold a combine (used to harvest wheat and other grains) to Edwards, a resident of Douglas County, Wisconsin, for $5,000 cash down and $95,000 payable in 120 monthly installments of $1,000 each (including interest), commencing September 1, 2017.To secure payment of the outstanding debt, Edwards signed a security agreement granting Smith a security interest in the combine.

Assume that Smith took whatever steps were necessary to perfect his security interest in the combine no later than September 1, 2017, suppose that, on July 24, 2018, still owing Smith $84,000 (in other words, Edwards was current on her payments), Edwards traded the combine to Jones Farm Equipment, Inc. (another farm equipment dealer), Saint Louis County, Minnesota for a $75,000 tractor to use on Edwards's "weekend farm" in Saint Louis County.

1. Does Smith still have a perfected Security Interest in the combine as of August 1, 2018?Please explain.The explanation must include the rule(s) of law and a complete legal analysis. (Notice this is a question I used, and modified from another professor, I will not tell you that person's name, but want to acknowledge that it is not entirely original).(20 points, 5 points for the correct answer and 15 points for the correct rules of law and explanation)
2. Does Smith have any security interest in the tractor for weekend farm use?Explain fully, using the correct rules of law. (20 points, 5 points for the correct answer and 15 points for the correct rules of law and explanation)