# Review of Interfaces, Imports, & Math | Ultimate Web3 Solidity & Javascript Course | Lesson 4 Pt. 9

- Channel: [Chainlink San Francisco](https://streameth.org/chainlink-san-francisco)
- Date: 2022-10-24
- Watch: https://streameth.org/watch/yt-dswinz8_PTA
- YouTube: https://www.youtube.com/watch?v=dswinz8_PTA