The Hydrogen Atom and the Rydberg Equation

Choose the answer that fills the blank correctly or answers the question.

Question
What is the energy of a photon emitted from a hydrogen atom that undergoes a transition from the n = 9 state to the n = 3 state?
6.029e-20 J
1.758e-20 J
2.153e-19 J
5.005e-19 J