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1. \(x =11 \)

3. \( x =-4\)

5. \( x =-13\)

7. \( x =16\)

9. \(35,36,37\)

11. \(-14,-13,-12\)

13.  \(61,63,65\)

15. \(9,11,13\)

17. \(64^{\circ}, 64^{\circ}, 52^{\circ}\)

19. \(30^{\circ}, 120^{\circ}, 30^{\circ}\)

21. \(40^{\circ}, 80^{\circ}, 60^{\circ}\)

23. \(24^{\circ}, 120^{\circ}, 36^{\circ}\)

25. \(25^{\circ}, 100^{\circ}, 55^{\circ}\)

27. \(56 \times 96\)

29. \(57 \times 83\)

31. Cabin: \($ 6,000\), Land: \($ 24,000\)

33. Bike: \($200\), Helmet: \($40\)

35. Mr. Brown: \($200\), Son: \($20\)

37. Aaron: \(532\) Sheep, Beth: \(76\) Sheep

39. Jamal: \($2500\), Moshe: \($5000\)

41. \(2\) ft & \(4\) ft

43. \(14\) ft & \(16\) ft

45. Flight: \($950\), Ground: \($325\)