20 or 28? What is the missing number? | Minute Math #brainteaser

What is the missing number here? Is it 20 or 28? We are given a number brain teaser and there is a number missing. The internet is torn on this one, let me know which answer you think it is.

#minutemath #mathhelp #onlinemathvideos #math #mathvideos #freemathvideos #lightboard #brainteaser #iqtest #numberpuzzle #mathfun

Visit our website Math Help and Math Merch:
https://minutemath.com/

Time Stamps:
00:00 - The Problem
00:48 - The Steps
01:41 - Answer 1
02:35 - Answer 2

Follow us for...
Tweets: https://twitter.com/minutemath
Instagram: https://www.instagram.com/minutemath/
TikTok: https://www.tiktok.com/@therealminutemath
Facebook: https://www.facebook.com/MinuteMath/
Personal Instagram: https://www.instagram.com/gannonforpresident/
Business Instagram: https://www.instagram.com/minutebusinessacademy/
Amazon Store: https://www.amazon.com/shop/minutemath