The Lenovo G27c-10 Monitor, model number 66A3GCCBUS, has a maximum manufacturer's refresh rate of 165Hz. Here is a link to more information about this monitor: https://psref.lenovo.com/Detail/Lenovo%20Monitors/Lenovo_G27c_10?M=66A3GCCBUS

That will depend on the requirements and compatibility of the APP you want to use. The Lenovo IdeaPad 1 14 Laptop is an entry-level laptop with a 300p webcam and microphone built in. This laptop ships with Windows 10 S-Mode 64-bit Operating System. Windows 10 S-Mode provides added security by only allowing APPs available ( and therefore certified by Microsoft) at the Microsoft Store. If you don't need the added security or you need to install APPs not available at the Microsoft Store, you can switch to standard Windows 10 Home 64-bit Operating System, at no additional cost. We recommend you check with the specific APPs software publisher's web site for their compatibility with Windows 10 S-Mode 64-bit operating system and the minimum/recommended hardware requirements (Is a Graphics card required, the processor speed and the minimum required system RAM and the minimum available hard drive space) to run their program, then compare those requirements to this system's configuration.

You will want to use a AES protocol active pen with the Yoga 7i 14, model number 82BH0006US, that has 4096 levels of pressure sensitivity. Here is an example of a compatible active pen for this model: https://www.bestbuy.com/site/wacom-bamboo-ink-smart-stylus-for-windows-ink-2nd-generation-gray/6374981.p?skuId=6374981

The Lenovo IdeaPad 1 14 laptop is an entry-level laptop. It has a 300p webcam and microphone built in. It ships with Windows 10 S-Mode Operating System. Windows 10 S-Mode provides added security by only allowing APPs available ( and therefore certified by Microsoft) at the Microsoft Store. If you don't need the added security or you need to install APPs not available at the Microsoft Store, you can switch to standard Windows 10 Home 64-bit Operating System, at no additional cost. Whether this laptop will work for your online schooling will depend on the software that will be used and the requirements and compatibility of that software. We recommend you check with the specific software publisher's web sites for the software you will be using, for their compatibility with Windows 10 S-Mode 64-bit operating system and the minimum/recommended hardware requirements (Is a Graphics card required, the processor speed and the minimum required system RAM and the minimum available hard drive space) to run their program, then compare those requirements to this system's configuration.