Yes, the phrase les cahiers ("the notebooks") is in the plural in French.
Yes, "cahiers" is the plural form of the word "cahier" in French.
The plural form of "un cahier" in French is "des cahiers."
"Mes cahiers" is masculine in French because "cahiers" is a masculine noun and the possessive adjective "mes" agrees with the gender of the noun it precedes.
The plural of "agréable" in French is "agréables."
The plural of "bonjour" in French is "bonjours."
A sister is "une soeur" in French. The plural is "des soeurs".
The plural form of "un cahier" in French is "des cahiers."
The Cahiers were a list of issues and grievances which were issued by estates in France. The Chaiers were released shortly before the start of the French Revolution.
cahiers de doleances
Où sont vos cahiers?
livret de travail
Notebooks (which outlined peoples concerns in the Great Fear (French Revoution))
tous mes cahiers d'exercice
The French term for notebook is "cahier."
"Fermez les cahiers" is French for "Close your notebooks." It is a command telling someone to close their notebooks or exercise books.
J'aimerais avoir des cahiers roses
Cahiers Élisabéthains was created in 1972.
Cahiers d'art was created in 1926.