Mình làm không biết đúng không. Bạn thông cảm 

27. instruction

28. fashionable

29. Religious

30. Proud

31. enjoyable

32. restful

33. interesting

34. interested

35. entrance

36. picnicking

37. heroes

38. enjoyably - rested

40. enjoyment

41. villagers

42. relaxing

43. restful

44.  collection

45. difficulties

46. improvement

47. reputable

48. advertisement

49. qualification 

50. do not practice - will not get

51. spending

52. would return

53. speaker

54. got - sleeping

55. invention

56. informative - entertaining 

57. popular

58. interacted

59. viewers

60. inconvenience

61. costly - consuming

62. pitiful 

63. respondent

64. communication

65. informative

66. interaction

67. popular

68. being widened

69. interesting

70. inventor

71. quality

72. development

73. peaceful

74. economical

75. separatism

76. impressing

77. friendless

78. religion

79. interested

80. qualified

81. impolite/unpolite 

82. relaxing

83. reputation 

84. hurriedly

Làm lòi cứt xong ko tick

Phân số chỉ phần diện tích đất làm lối đi là:

 \(1-\dfrac{1}{6}-\dfrac{3}{4}=\dfrac{12-2-9}{12}=\dfrac{1}{12}\)

Diện tích mảnh đất là:

\(52:\dfrac{1}{12}=52x12=\left(50+2\right)x12=600+24=624\left(m^2\right)\)

1.A
2.A
3.B
4.C
5.B
6.C
7.A
8.A
9.B
10.A
11.B
12.A
13.C
14.B
15.B
16.A
17.A
18.A
19.A
20.C

5: \(=\dfrac{1}{2}\cdot10-\dfrac{1}{2}=\dfrac{1}{2}\cdot9=\dfrac{9}{2}\)

Bn cần bài nào trong 2 bài nhỉ?

e tách câu hỏi ra nhe tạm thời cj giúp mụt câu nhe

a: \(=\dfrac{-5}{7}\left(\dfrac{2}{11}+\dfrac{9}{11}\right)+1+\dfrac{5}{7}=\dfrac{-5}{7}+1+\dfrac{5}{7}=1\)

b: \(=\dfrac{6}{7}+\dfrac{1}{8}-\dfrac{3}{16}\cdot4=\dfrac{6}{7}+\dfrac{1}{8}-\dfrac{3}{4}=\dfrac{13}{56}\)

c: \(=\dfrac{2}{3}+\dfrac{1}{3}\cdot\dfrac{-24+45}{54}\cdot\dfrac{12}{7}\)

\(=\dfrac{2}{3}+\dfrac{1}{3}\cdot\dfrac{21}{54}\cdot\dfrac{12}{7}=\dfrac{2}{3}+\dfrac{2}{9}=\dfrac{6+2}{9}=\dfrac{8}{9}\)

d: \(=\dfrac{1}{3}-\dfrac{1}{7}+\dfrac{1}{7}-\dfrac{1}{11}+...+\dfrac{1}{107}-\dfrac{1}{111}\)

\(=\dfrac{1}{3}-\dfrac{1}{111}=\dfrac{108}{333}=\dfrac{12}{37}\)

He was dehydrated because he had not drunk water in two days
Her family was worried because she had not come home
He couldn't call for help because the battery in phone had died

She was lost because she had wandered from the path