tìm diện tích hình chữ nhật khi biết tỉ số giữa ai cạnh là 5:4 và chu vi là 72m

\(\dfrac{3}{4}\):(\(\dfrac{-1}{2}\))\(^3\)+1\(\dfrac{1}{3}\)-(\(\dfrac{1}{5}\))\(^{2017}\):(\(\dfrac{1}{5}\))\(^{2016}\)

"9876543210" ai dịch nghĩa cho mình đi :<

** Đổi các câu sau sang phủ định và nghi vấn:

1/Nam is writing a letter.

à_____________________________________________

à_____________________________________________
2/She listened to music yesterday morning.
3/Ba and Lan were in the library last Tuesday
4/They cleaned their rooms two hours ago.
5/We had a wondeful holiday in the past.
6/His brother decorated the house last month.
7/Mai buys a new bike.
8/Children brush their teeth after meals.
9/Mrs Lien took his children to the zoo last Saturday.
10/She made breakfast for her family.
11/They are painting their house yellow.
12/This dress was beautiful.
13/I saw her two days ago

** Đổi các câu sau sang phủ định và nghi vấn:

1/Nam is writing a letter.

à_____________________________________________

à_____________________________________________
2/She listened to music yesterday morning.
3/Ba and Lan were in the library last Tuesday
4/They cleaned their rooms two hours ago.
5/We had a wondeful holiday in the past.
6/His brother decorated the house last month.
7/Mai buys a new bike.
8/Children brush their teeth after meals.
9/Mrs Lien took his children to the zoo last Saturday.
10/She made breakfast for her family.
11/They are painting their house yellow.
12/This dress was beautiful.
13/I saw her two days ago.

đặt một câu khẩu hiệu chống láng phí