Whereabouts do you want to use this character, in a URL or in the content of a page?
In the content it's easy enough, just paste it in from either Character Map (Windows) or the Special Characters window (Mac, typically found under the Edit menu). You can do this because all Squarespace sites are delivered as UTF-8, and it supports extended characters without you needing to do anything.
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My homework helps:
http://acewriters.org/do-my-homework.htmlhttps://mathway.com/https://www.math10.com/en/problem-solver/