A certain system has three energy levels at 0, 2.0×10^-21J and 8.0×10^- 21J and degeneracies 1,3 and 5 . Calculate the partition function of the system at 300K​

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?

Sorry guys but as you have a small brain

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?