plsss help me plsssss nonesense answer=report good and full answer=brainliest​

Answer:
1. 9
2. 8
3. 8,9,10,11
4.60,005
5.8,050
Step-by-step explanation:
pa brainliest nalang
ANSWERS :
= the greatest 8-digit number is 99999999 (9)
= without repetition (8)
= 9-9-8-6-4-2
= 60,005 (65)
= 8050 (8)
#studysmart
#carryonlearning
(can't reply cuz im not allowed,my comment will just get deleted)