Quand Muriel avait sept ans, ..
Muriel is the French spelling.
seven - sept
Seven sisters are "sept soeurs" in French.
You would say "J'ai sept ans" in French to mean "I am seven."
seven apples is translated 'sept pommes' in French
quarante-sept
it is "sept"
In English Seven, in Frech Sept
trente sept
sept heures
Seven thirty am is "sept heures trente" or "sept heures et demie" in French.
Il a sept ans