giúp mình vs ak mình đg cần gấp ak

A và B có tất cả 45 viên bi. Nếu A có thêm 5 viên bi thì A có nhiều hơn B 14 viên. Hỏi lúc đầu mỗi bạn có bao nhiêu viên bi ?

Thân bài như thế này đc chưa các bn? Còn thiếu j nữa ko? Thiếu j thì bn nào có lm rồi thì gửi bài mk tham khảo nha. Đủ hay thiếu thì cũng gửi bài. Biểu cảm về mái trường

B1Trên tian Ox lấy 2 điểm A,B sao cho OA = 4cm , Ob = 8cm a, Tính độ dài đoạn thẳng AB b, Diển A có phải là trung điểm của đoạn thẳng OB ko? Vì sao? c, Trên tia Ox lấy C sao cho OC = 10 cm . chứng minh B nằm giauwx A và C

Sentence transformation 7B 1. John smoked cigarettes when he was a young man.  John used 2. “Hand your books to me when you have finished, please.”  He asked me 3. In countries like Britain the weather changes all the time.  In countries like Britain, the weather is 4. You do not have to pay for secondary education in Britain.  Secondary education 5. He had a weak heart which meant he couldn’t walk very far.  His heart 6. Unless he phones immediately he won’t get information.  If 7. How long is it since they bought the house?  When 8. He couldn’t repair the broken vase.  The 9. The garden still needs digging.  The garden hasn’t 10. Have you had a cheaper carpet than this?  Is this ?

Sentence transformation 7B 1. John smoked cigarettes when he was a young man.  John used 2. “Hand your books to me when you have finished, please.”  He asked me 3. In countries like Britain the weather changes all the time.  In countries like Britain, the weather is 4. You do not have to pay for secondary education in Britain.  Secondary education 5. He had a weak heart which meant he couldn’t walk very far.  His heart 6. Unless he phones immediately he won’t get information.  If 7. How long is it since they bought the house?  When 8. He couldn’t repair the broken vase.  The 9. The garden still needs digging.  The garden hasn’t 10. Have you had a cheaper carpet than this?  Is this ?

anh chị ơi hướng dẫn e chỗ 2[2(k+1)-1]=(k+1)^2 với e không hiểu tại sao chỗ đó để ngoặc ấy không cần giải ra e chỉ hỏi sao ra cái đó là được ạ e hứa vote 5 sao + cảm ơn

tim x: a] X x4,2 = 3,15 : 0,1 b] 7,5 : X = 62,5 : 10 Lam on giup to nhe !

Giúp mình với ạ , mk đang cần gấp !

Merry Christmas! The holiday spirit is in the air! What exactly is the "holiday spirit"? What does it mean to you? Write a brief paragraph (about 150 words) with your thoughts on the "holiday spirit".