Janice is creating a scrapbook page with vertices (2,1), (7,1), (7,7) and (2,7). What is the area of the page she will be covering if each grid represents four square inches?

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

Math i have no idea how to do a and b

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?