A system can exist in two nondegenerate states: a ground state energy ${}_1$ and a higher energy state ${}_2.$ Develop expressions for the average energy, heat capacity, entropy and Helmholtz energy of the system as a function of temperature.

$2$ Repeat problem one but this time assume that the energy state ${}_1$ and ${}_2$ has a degeneracy of ${}_1$ and ${}_2,$ respectively.

I need help with question $1$ and $2$