How would you answer these

Answer:
mi numero de telefono es.
Explanation:
Answer:
what's your phone number?
There is no a formal way to say a telephone number. People tend to group the numbers, like "954 331214 = 9-5-4-33-12-14", but you could read one figure at a time, since each person does it differently.
and how old are you?
yo soy___ años = i am __years old
15=quince
16=dieciséis
17=de diecisiete
18=Dieciocho