Why do people keep commenting links on stop trying to hack other folks, thanks

Aiden drives to school and back each day. the school is 16 miles from his home. he averages 40 miles per hour on his way to school. if his trip takes 1 hour, at approximately what speed does aiden drive home?

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Simplify the expression 10/11(22z) + (a+5) -1