need some help

i have a 98 firebird formula. Just recently (like tonight), i realized that my right blinker doesn't work in the front and the back. The tail lights work but the blinker on the right won't work. the arrow sign on the dash lights up but it doesn't blink and only clicks once. can anyone help me out on what it might be?

Loose connections?
Burnt out bulbs?

That reminds me, I have to fix my headlight before I get pulled over agian.