-step explanation: Mango Tropical Fruit Dessert CORNER points: (0, 7/4), (1, 1), (32/11, 0) 39. x = # dollars in PNF, y = # dollars in FDMMX Corner points: (70,000, 0), (80,000, 0), (20,000, 60,000) 41. x = # shares of MO, y = # shares of RAI Corner points: (0, 200), (0, 220), (220, 20) 43. x = # full-page ads in Sports Illustrated, y = # full-page ads in GQ Corner points: (3, 7), (4, 3) (Rounded) Solution set x y 3 0.65 3 3 20 0.65x 0.15y - 3 2.25x 2.75y - 550 50x 55y - 12,100 x y 200 220 244.4 242 Solution set Solution set 0.06x 0.05y - 4200 x y - 80,000 x y 80,000 84,000 70,000 80,000 Solution set 60x 80y - 140 11x 21y - 32 x y 7 4 32 21 32 11 7 3 Solution set 5x y - 100 5x 2y - 150 x y 75 100 20 30 45. An example is x ≥ 0, y ≥ 0, x + y ≥ 1 47. The GIVEN tri- angle can be described as the solution set of the system x ≥ 0, y ≥ 0, x + 2y ≤ 2. 49. Answers may vary. One limitation is that the method is only suitable for situations with two unknown QUANTITIES. Accuracy is also limited when graphing. 51. (C) 53. (B) 55. There are no feasible solutions; that is, it is impossible to SATISFY all the constraints. 57. Answers will vary. Section 4.2 1. p