Homework answers and translations part one home work

Question 1

What is the appropriate definite article for the following words?
Mochilas-las
Casa-la
problemas-las
niño-el

Answer 1

m

Question 2

What is the appropriate indefinite article?
carpeta-una
mapa-un
bolígrafo-un
relojes-unos

Question 3

Escribe el plural (el niño-los niños)
La Casa-Las Casas
El proyector-los proyectors
La universidad-Las universidads