1.)6(a - 6) = 48
=?
2.) 1又5分之3 a - 2又10分之9 =3分之2
=?
3.)p( 1 - 9分之4)= 30
=?
4.)k(1+20%)=4.8
=?
收錄日期: 2021-04-14 20:17:27
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080130000051KK02873