To convert Dima's weight from pounds to kilograms, you can use the conversion factor provided: 1 pound = 0.45 kilograms.
Given that Dima weighs 129 pounds, you can calculate her weight in kilograms as follows:
\[ 129 \text{ pounds} \times 0.45 \text{ kilograms/pound} = 58.05 \text{ kilograms} \]
Therefore, Dima weighs approximately 58.05 kilograms.
Since the final answer already has two decimal places, it is already rounded to the nearest hundredth.