Một phòng họp có 180 người được xếp đều trên các dãy ghế. Nếu thêm 80 người thì phải kê thêm 2 dãy ghế và mỗi dãy ghế tăng thêm 3 người. Hỏi lúc đầu phòng họp đó
có bao nhiêu dãy ghế ?

angle addition postulate

2x=56

step-by-step explanation:

the answer would be d

straight away you can eliminate a and c because not all books contain a scientific skill because some may be fiction. c is also wrong because it saids that the only way children can learn is through books which is incorrect.

b is also wrong because reading can be a scientific skill but not always, therefore it is wrong which leaves you with d, the correct answer since it said that it can children learn.

hope this ! : 3

could you provide figure.

“a term can be a signed number, a variable, or a constant multiplied by a + sign or j sign. in , the terms are 5x , 3y and 8. when a term is made up of a constant multiplied by a variable or variables, that constant is called a coefficient.” i hope this you.