To find Dam's salary, which is \( \frac{2}{5} \) of your salary, you can use the following calculation:
\[ \text{Dam's Salary} = \frac{2}{5} \times 39000 \]
Calculating this:
\[ \text{Dam's Salary} = \frac{2 \times 39000}{5} = \frac{78000}{5} = 15600 \]
So, Dam's salary is $15,600.