https://support.google.com/edu/classroom/thread/326775613/call-now-what-is-the-24-hour-rule-for-%F0%9D%99%BA%F0%9D%99%BB%F0%9D%99%BChttps://support.google.com/edu/classroom/thread/326775613/call-now-what-is-the-24-hour-rule-for-%F0%9D%99%BA%F0%9D%99%BB%F0%9D%99%BChttps://support.google.com/edu/classroom/thread/326775613/call-now-what-is-the-24-hour-rule-for-%F0%9D%99%BA%F0%9D%99%BB%F0%9D%99%BChttps://support.google.com/edu/classroom/thread/326775613/call-now-what-is-the-24-hour-rule-for-%F0%9D%99%BA%F0%9D%99%BB%F0%9D%99%BChttps://support.google.com/edu/classroom/thread/326775613/call-now-what-is-the-24-hour-rule-for-%F0%9D%99%BA%F0%9D%99%BB%F0%9D%99%BC