Các bạn giúp mình vs ạ 😃 mình vote 5 ⭐ cho câu trả lời nhanh và đúng ạ

cho a =3+3^2+3^3+3^4+...+3^2009 tìm STN n biết rằng 2A+3=3^n

Đốt cháy hoàn toàn 0,1 mol một loại chất béo thu được CO2 và H2O hơn kém nhau 0,6 mol. Tính thể tích dung dịch Br2 0,5M tối đa để phản ứng hết với 0,3 mol chất béo X

* Supply the correct verb tense: I (take) ____________ Nam to the market tomorrow. You (be) ____________ at Ba’s house tonight. She (look) ____________ after her cat. We (be) ____________ doctors ten years ago. They (be) ____________ teachers next year. You (be not ) ____________ at school yesterday. She (not help) ____________ Lan tomorrow. We (be not) ____________ doctors last year. They (be not) ____________ teachers a year ago. Na (be) _____________ a good girl last year. Na and Nga (be) _____________ students soon. My friend (be) _____________ a good child some day. Your friends (be) _____________ in Long Giang a year ago. My teacher (be) _____________ in Long Dien B last year. Her teachers (be) _____________ at school last Saturday. Na (be not) _____________ a good girl yesterday. Na and Nga (be not) _____________ students. My friend (be not) _____________ a good child. Your friends (be not) _____________ in Long Giang. My teacher (be not) _____________ in Long Dien B. Her teachers (be not) _____________ at school. ___________ Na (be) a good girl? ___________Na and Nga (be) students? ___________my friend (be) a good child? ___________your friends (be) in Long Giang? ___________my teacher (be) in Long Dien B? ___________her teachers (be) at school? ___________ you a student last year? Nam (be) _______ a good student two years ago. I (want) ____________ to stay home last summer. You (want) ____________ to go to school yesterday. She (want) ____________ to cook dinner last night. He (want) ____________ to listen to music an hour ago. They (want) ____________ to go to the zoo last week. We (want) ____________ stay in bed this morning. I (not want) ____________ to go to work in 1999. You (not want) ____________ to go to school yesterday. She (want) ____________ to cook dinner last night. He (not want) ____________ to listen to music yesterday. They (not want) ____________ to go to the zoo last week. We (not want) ____________ stay in bed this morning. Ba (not want) _____________ to play soccer with his friends yesterday. Lan (wash) ____________ her clothes yesterday. You (wash) ____________ your hair ten minutes ago. He (wash) ____________ his car. I (wash) ____________ up the dishes. They (wash) ____________ their house. We (wash) ____________ our watch. Lan (not wash) ____________ her clothes. You (not wash) ____________ your hair.

I think nuclear power is not only expensive but also _____________ to our environment. A. danger B. dangerous C. safe D. limited

giúp em!!!!!!!!!!!!!!!! R1,R2,R3 là muối gì ạ

Giúp mình nối thành cụm động từ và làm xong ghi nghĩa hộ mình luôn nha! Hứa vote5*

vẽ đậu mầm kiểu tức giận NL:ik giỏi quá rồi đấy!

That ....... plays a lot of different instruments. MUSIC

Bài1, Tìm giá trị nhỏ nhất của các biểu thức sau a, A=x^2-3x+5 b, B=(2x-1)^2+(x+2)^2 Bài2, Tìm giá trị lớn nhất của biểu thức a, A=4-x^2+2x b, B=4x-x^2