Contact us
Choose a category below so we can get back to you as quickly as possible.
張小蓉2010,你好: 設最小數為X,最小數為X+4,則 X÷(X+4)=4/5 5X=4X+16 X=16
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.