1.What's your name?

2. What's his name?

3. How many people in his family?

4. How old is he?

5. What is it?

1/3 +4/7 +-5/21=7/21+5/21=14/21=2/3

The answer is A.

The answer is C

The answer is D

The answer is C ( 15 )

50x100x1x25x4x2x5x20

=(50x2)x(100x1)x(25x4)x(20x5)

=  100   x   100    x   100  x  100

=     10000           x      10000

=      100000000.

It Thai Son mountain.

The answer is D ( 10% )  ^_^

tk nha

The answer is D ( equal to 100 )

0.074   ^_^

tk nha 

The final number is 5.

History is the longest.  ^_^

tk mk nha!

The answer is (D) 27

Sorry: What the mountains cut into pieces?

There are four ducks.

Ai tk cho mk thì mk sẽ tk lại! 

I don't know    !

75+25+13+91+87+52+48+9

=(75+25)+(13+87)+(91+9)+(52+48)

=   100    +    100    +   100  +   100

=   100x4

=   400.

2x2+3x4+4x3=28

There are 28 wheels in the garage.

Hieu: 34 rim.

Hung: 32 rim.

tk me!

100 cm²