Answer:
hi how are you I hope you do well
Explanation:
Do you mean Deccoloras El polo. If so, then it means "with what do you bleach your hair"
The first one:
A las tres, Pepe hablo con su novia por teléfono.
The second one doesn’t make much sense, it would be saying: I bought some black pants and my friend Mateo like a lot of money.
I added words in parentheses to make it make more sense:
Yo compré unos pantalones negros y (a) mi amigo mateo le gusta mucho (el) dinero.
The third one:
Después, nosotros comimos cerca de un mercado.
When you're talking about nonspecific things.
it's like (a) and (an) in english.
uno is for singular masculine.
una is for singular feminine.
unos is for plural masculine.
unas is for plural feminine.