Answer:
![0.09 < 0.1](https://img.qammunity.org/2021/formulas/mathematics/high-school/foyhlrv2itzfly7yevyyfhl85kcoupz3zv.png)
Explanation:
Remember that it doesn't matter how many numbers are after the tenths place of a decimal point what matters is the tenths place itself. If you have a decimal that has dozens of numbers but it's tenth place is a 3 and then you have a decimal with 5 numbers in whole but it's tenths place is 4, the 4 is greater then the 3 simply because it's greater in tenths.
Hope this helps.