A town has a large unused field. A rectangular portion of the field will be enclosed by a fence for a dog park. The park will be W meters wide and L meters long, where the length is two times the width. The park will be enclosed by a fence on all 4 sides, with an additional segment of fence running through the middle of the park, dividing it into two square areas. If a total of 1,400 meters of fence is used to enclose the park and divide it into the two square areas as described, which of the following systems of equations could be solved to determine the width and length of the park?

1. an economy consists of three workers: larry, moe, and curly. each works 10 hours a day and can produce two services: mowing lawns and washing cars. in an hour, larry can either mow one lawn or wash one car; moe can either mow one lawn or wash two cars; and curly can either mow two lawns or wash one car. a. calculate how much of each service is produced under the following circumstances: a. all three spend all their time mowing lawns. b. all three spend all their time washing cars. c. all three spend half their time on each activity d. larry spends half of his time on each activity, while moe only washes cars and curly only mows lawns b. using your answers to part a, draw a production possibilities frontier and label points a, b, c, and d on your graph. explain why the production possibilities frontier has the shape it does. c. are any of the allocations calculated in part a inefficient? explain.