Which of the following does not contribute to increased air quality? a. the clean air act b. hybrid cars c. energy-efficient appliances d. use of cfcs

Afootpath is to be constructed in a park in the shape of a parallelogram. when a coordinate plane is laid over a map of the park, the vertices of the footpath are (-4,2) (8,2) (11,7) and (-1,7). what is the perimeter of this path