Never use brainly. I was stuck on a few answers and people were like, "I AM 100% SURE" AND "I TOOK THE TEST, I AM RIGHT" but no they were wrong got a dang 50% on the math test. These trolls prey on innocent kids, and suck their right answers out of their brains.
Edit: I mean I'll still use brainly, but I will double check my answers afterwards with my own knowledge. AND THE QUESTION-ASKERS ARE PLAYING ALONG WITH THE TROLLS AND GIVING THEM BRAINLIEST. If I didn't trust brainly and stuck with my guts I would've gotten probably a C+ which is alright in my onion