### Instruction: What is one half of $\dfrac{1}{100}$ of $9000$?### Response: I need to find one half of $\dfrac{1}{100}$ of $9000$.
To do that, I can multiply $9000$ by $\dfrac{1}{100}$ and then divide the result by $2$.
Multiplying $9000$ by $\dfrac{1}{100}$ is the same as dividing $9000$ by $100$, which gives me $90$.
Then dividing $90$ by $2$ gives me $45$.
Therefore, one half of $\dfrac{1}{100}$ of $9000$ is $45$.