need help with aos! with kids ..

[kathericas]

hi everybody!! you guys are big help ! I just got married to usc and i will fillout all the papers by myself (scary) so i came to usa with a student visa and i overstayed my daughters came with a turist visa and overstayed too (upss) that was 8 years ago now i just got married and need help with the forms.
1. wich forms a need to fill out.
2. I- 130 do i need one for me and one for each daughter (twins)
3. I- 485 only one or three?
4. How much for the i 485? same 1010 even for 8 years old?
that's it for now ..
Thanks soo much...

[PraetorianXI]

one set of forms for each person. same price to pay, even for a 1 day old.

forms: i-485, i-130, i-693, i-765 (just for you so you can work), i-864.