Question

A sign that weighs 670N is mounted at the end of a 2.00-m long rod of negligible weight. The supporting cable is connected at angle theta=30deg to the center of the rod. What is a) the tension T in the supporting cable, and b) the horizontal and vertical components of the force of the hinge on the rod (Hx and Hy)?

Trying to study for a test. I changed the numbers of the review problem for my sake to see if I could get the actual answer using someone's explanation. (The prof didn't explain it so well, even after asking). So a detailed explanation would be helpful and much appreciated.