If you wish to support my effort, you may do so by making a donation via PayPal or Patreon or Venmo. The digital currencies, Bitcoin (BTC), Ethereum (ETH), and Litecoin (LTC) are also accepted. Whether it's a big or small donation, I will greatly appreciate it. Tell your friends, classmates, colleagues, and anyone else you think might benefit about this website. One more way to support the site is to post this flyer in places where STEM students are likely to see it.

If you do make a donation, then please let me know what book in the index you would like to see more solutions for.


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Venmo Username: STEM Jock (stemjock)

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