You can put this solution on YOUR website! The ' marks indicate minutes (which are 1/60 of a degree) and the " indicates seconds (which are 1/60 of a minute or 1/(60*60) or 1/3600 of a degree).
To convert these to some number of degrees:
d degrees m minutes s seconds = (d + m/60 + s/3600) degrees
(Note: Leave any negative signs out of this and apply it after the addition. So for your problem 1 use:
-120 degrees 47 minutes = -(120 + 47/60) degrees
For your problem #2, use the above to convert it to degrees. Then multiply that result by to convert the degrees to radians.
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