To anyone who took the june physics regents?

Question

http://jmap.org/JMAP/IJMAP/Physics/RegentsExams/0608ExamPH.pdf

can someone please go to that site and tell me what the answer to question 39 was? thats the only question I'm really worried about and I still have no idea how to solve it.

Answer 1

(2) 8.0N -- the horizontal component of the gravitational force on the box is 10sin(30)=5 + force of friction (3) = 8 (no acceleration therefore no net force)