Yes because we often use this app lalo na if no choice ka talaga or di mo alam yung isasagot mo (kunwari walang 4i) There's some answers na accurate talaga sa tanong kaya we're thankfulNo, because some answers here were out of topic or question na, minsan sasagot lang sila kasi kailangan ng points. Some answer were wrong then which is normal kahit yung 4i is nag kakamali din. It's so useless for me sa math equation kasi wala pa atang nasasagot na tama (in my experience lang) but still we need to thank those people who help us and did their best to answer even it's wrong.