New RC Students in August. Need advices and information.

My child would be joining RC in August. She would be in Year 7. She went to the Year 7 induction today and I have some questions.

UNIFORM:
How many polo shirts and how many PE shirts should I order Actually how many PE days per week?
For girls in secondary school, can they wear skorts instead of skirts?
Are the long pants for winter only?
For the socks, should I get the long ones or the short ones?

SCHOOLBAG:
My daughter said that they would have to move around the campus everyday since it would be the students to go to the teachers' rooms. So any suggestion of a good schoolbag? Would a large backpack be good? I think it would be quite heavy to carry things around the campus.

COMPUTER:
Do they have to bring their notebook computer to school everyday?

SHOES:
Any rules on what kind of shoes an be worn? I saw that many students (both boys and girls) wear black sneakers instead of black leather shoes.

That's it for now. Really hope RC parents can help.

BTW, my daughter enjoyed the day. She said that the campus is really nice and modern and big; just that she was very tired after the day. She had to walk around the school, up the stairs and down the stairs.