help with two 1 1/2 year old sulcata tortoise

by rj ferris
(arizona)

1- boy or girl.

2-has a runny nose some times,why..if it has rns what can i do to fix that.
3-when will i be able to know when they are sexually mature
4-when will they mate
5-what can i feed them
6-what is the temperature they should live in
7-do i need to buy vitamins for them
thank you i hope somebody can help me out with these question, thanks...