(25-x).100=0
25.x=0.100
25-x=0
x=25-0
x=25
Vậy x=25

=644271

1,Table is made of wood by them.
2,This book isn't sold in many bookstores by people.
3,This gift are wrapped  in colorful paper by this girl.
4,The cars aren't regularly polished by that garage.
5,The grass in the garden is cut every week by my mother.
6,These tometoes are grown in Mrs.Smith's garden by these boy.

a)hiện tượng đảo ngữ/nói lái (Bò lang-làng Bo)
b)hiện tượng dùng từ đồng nghĩa (Trăng-trăng, Núi-núi)
c)hiện tượng gần nghĩa (Xuân, hạ, thu, đông-4 mùa)
d)hiện tượng đồng âm (cùng âm ''b'')

14-A
15-D
16-C
17-D
18-B
19-A
20-A
21-C
22-C
23-D
24-D
25-A
26-B

\(\left(\dfrac{1}{2}\right)^2\times\left(\dfrac{1}{2}\right)^3\)
=\(\left(\dfrac{1}{2}\right)^5\)
=\(\dfrac{1^5}{2^5}\)
=\(\dfrac{1}{32}\)

a)37.(-29)-29.(-163)-40
=29.[-37-(-163)]-40
=29.126-40
=3654-40
=3614
b)22.5-(2013⁰+1²⁰²⁰).3-27
=110-(1+1).3-27
=110-2.3-27
=110-6-27
=77

18 059 870

19-A,room
20-A,am
21-B,on
22-D,are
23-D,next
24-C,sleeping