một người bán 4 cái đồng hồ đeo tay và được lãi 120 000 đồng . tính ra số tiền lãi đó bằng 20% tiền vốn. hỏi tiền vốn của mỗi cái đồng hồ là bao nhiêu

Hấp thụ hoàn toàn 2,24 lít SO2 đktc vào bình đựng dung dịch Ca(OH)2 dư hỏi sau phản ứng muối nào tạo thành và bao nhiêu gam?

tìm giá trị nhỏ nhất của biểu thức : A = |x - 16 | + 20

trọng lượng riêng trọng lượng lực đàn hồi trọng lực niu tơn ko phải là đơn vị của

một thùng hình trụ có chiều cAO H=3M BÁN KÍNH ĐƯỜNG TRÒN ĐÁY R=1m chứa một lượng nước biết rằng nếu đặt thùng nằm ngang ta được chiều cao mực nước trong thung là d=0.5m .hỏi thể tích lượng nước có trong bình gần với giá trị nào ? giúp với ạ

24/There's the lady. Her dog was killed. => 25/ He's the person. His car was stolen. => 26/ They're the people. Their shop burned down last week. => 27/ I'm the person. You stayed in my flat. => 28/ This is a story of a group boys. Their plane crashed on an uninhabited island. => 29/ This is Mrs. Jones. Her son won the championship last year. => 30/ I know the woman. You bought the car from her son. => 31/ The roads were crowded with refugees. Many of them were wounded. => 32/ The lorry crashed into a bus-load of schoolchildren. Six of them were slightly injured. => 33. In prison they fed us on dry bread. Most of it was mouldy. => 34. I saw several houses. Most of them were quite unsuitable. => 35. He introduced me to his students. Most of them were from abroad. => 36. He expected me to pay 2$ for 12 eggs. Four of the eggs were broken. => 37. They gave me four very bad tyres. One of them burst before I had driven four miles. => 38/ The car crashed into a queue of people. Four of them were killed. => 39/ We need a room. We can study in that room. => 40/ He invited her to eat out on a day. It rained heavily on that day. => 41/ The day was sunny. She arrived on that day. => 42/ September 2nd 1945 was the date. President Ho Chi Minh declared the Independence of Vietnam on that date. => 43/I am going to visit the town. I was born and grew up in the town. => 44/ Hanoi is the city. I was born in it.

Giúp mình điền vào bảng này vs ah. Cảm ơn mng nhiều lắm

Giúp mk với mk k hiểu giải rõ ra dùm mk nha( làm theo đường thẳng đi qua ......)

Why don't we organize an English competition for our students

vì sao trong bài thơ bếp lửa có thể nói bà là người nhóm lửa cũng là người giữ lửa và truyền lửa cho con cháu