Use the commutative and associative properties as needed to simplify the expression.
-3(4y)

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?

The collection of beautiful oil paintings currently on display at an art gallery well defined; set not well defined; not a set

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?