Janice was at the surface of a swimming pool and recorded the following two measurements, in feet, on a number line: -8, which represents the depth of water in the swimming pool +12, which represents the height of the slide at the pool Part A: What does 0 represent in this situation? (3 points) Part B: Describe the height of the slide in relation to o in the situation. (3 points) Part C: Janice held a pole in the swimming pool. The bottom of the pole was at a depth of 4 feet. How should Janice mark the level of the bottom of the pole on the number line? Explain how you determined this. (4 points)

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

Solve 2x2 + 8 = 0 by graphing the related function. there are two solutions: . there are no real number solutions. there are two solutions: 2 and -2

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.