Can some one look over my sentences and correct them, then tell me what i did wrong: her raincoat is new = elle pleut manteau est nouvel the tv is old= le voiture est vieux the leaves are beautiful= elle besoin de nouvelles the newspaper is new = le un journal est nouveau her jacket is beautiful = elle blouson est belle

Hi,
Son imperméable est nouveau.
La TV est vieille. (TV= télévision)
Les feuilles sont belles.
Le journal est nouveau.
Son blouson est beau.

Hi !!

Her raincoat is new =Son imperméable est neuf
coat = manteau // raincoat = imperméable
for clothes , we say neuf/neuve when it's new, rather than nouveau/nouvelle

The TV is old = La télévision est vieille
the car is old = la voiture est vieille 
(old = vieux/vieille)

The leaves are beautiful = les feuilles sont magnifiques (belles)
elle a besoin de nouvelles = she needs news

The newspaper is new = le journal est nouveau
the = le/la /// a = un/une

Her jacket is beautiful = sa veste est magnifique (belle)
her = possessive feminine pronoun.
In French the pronoun always agrees with the following noun, that's why I wrote "veste" (feminine) and not "blouson" (masculine)
with blouson it would be = son blouson est magnifique (beau)

beautiful = magnifique, superbe, très beau/belle

hope this helps !