Make a statistical profile of your own statistics class. Items of interest might be any of the following. (a) Height, age, gender, pulse, number of siblings, marital status (b) Number of college credit hours completed (as of beginning of term); grade point average (c) Major; number of credit hours enrolled in this term (d) Number of scheduled hours working per week (e) Distance from residence to first class; time it takes to travel from residence to first class (f) Year, make, and color of car usually driven What directions would you give to people creating these questions

Runners run around the school's football field. the cross country coach determines that the width of the field is seventy yards shorter than the length. part a write an expression that represents the perimeter of the football field. let x represent the length of the football field. include parentheses in your expression. next, write an equivalent expression that does not include parentheses. what property or properties did you use to simplify? explain. part b the cross country coach later determines that the length of the football field is 120 yards. all students must run five laps. using your answer from part a, determine the actual number of yards that each athlete must run in the tryouts. in order to make the team, students must complete the laps in 6 minutes. how quickly must they run each lap?