bài yêu cầu gì dzậy ?

In the future, I wish I had a housework robot. My future work is a lot, so it would be great to have a housework robot to help me with my problems that I can't do. For example: in the future I will have a family, the robot will help me take care of the kids. If I can't cook, I can ask it to cook for me. The housework robot will help me clean the house, feed the dog, protect the house when I'm away ... a lot of benefits when having it in the future. In the future, I wish I had a housework robot.

Có hơi ngắn quá ko để mình viết tiếp , bình thường cô mình cho phải trên 80 từ nên thấy hơi ngắn ?

ko biết sao nó ko ra đc á , 19 là số nguyên tố mà , 18 hay 19 vậy ?

học tốt nhé 

-1 . \(\dfrac{5}{27}\) - \(\left(3x.\dfrac{7}{9^{ }}\right)^3\) = -\(\dfrac{24}{27}\)

\(\Rightarrow\) \(\dfrac{-5}{27}\) - \(\left(3x.\dfrac{7}{9^{ }}\right)^3\) = \(\dfrac{-24}{27}\)

\(\Rightarrow\) \(\left(3x.\dfrac{7}{9^{ }}\right)^3\) = \(\dfrac{-5}{27}\) - \(\dfrac{-24}{27}\) = \(\dfrac{19}{27}\)

\(\Rightarrow\) \(3^3\) . \(\dfrac{7^3}{3^6}\) = \(\dfrac{19}{3^3}\)

\(\Rightarrow\) \(\dfrac{x^3.7^3}{3^3}\) = \(\dfrac{19}{3^3}\)

\(\Rightarrow\) \(x^3\) . \(7^3\) = 19

underline the mistakes and rewrite the correct sentences :

1. does you father prefer tea or coffee ?

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2. with addition to the bad service , the cost of the accommodation is too high.

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3. it will take us 20 minutes to getting to the station on foot .

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4. the teacher made us to finish that math question .

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5. did you go on holiday by your own ?

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