What is the simple subject of the sentence tell me about them

Are these any instance when you misbehaved online? how do you think should you behave now that you have learned netiquette and proper behaviour on the world wide web?

What point is the author trying to make by comparing the travel times of the first transcontinental railroad and the first transcontinental flight?

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the length of each side of a square increases by 2.5 inches to form a new square with a perimeter of 70 inches. the length of each side of the original square was inches.