1.The library lends books to both students and teachers

=>Both students and teachers can ........................................

2. My mother is always busy from morning till night .

=>My mother is...............................................

3. Our sources of energy will soon end if we don't try save them (Unless )

=>

Giúp mình với ,mai thi rồi!

chứng minh A=\(\frac{3n+2}{2n+3}\)là phân số tối giản

x + 200 = 700

x          = 700 - 200

x          = 500

ai k mik mik k lai