b và c

B và D

1. B

2. D

1 doesn't like

2 was reconstructed

3 have ever tried

4 will you take

5 is made

6 often rains - isn't raining

7 had

8 are standing

9 are

1. doesn't like

2. was reconstructed

3. I have ever tried

4. will you take

5. is made

6. often rains - isn't raining

7. had

8. are standing

9. are

1. books, old clothes, blood, food, notebooks, money

2. schoolyard, neighborhood, 

3. elderly people, homeless people, street children, poor children

4. fresh water, English lessons, food, opportunities

Bài 2:

\(a.\left(y+3,02\right):1,5=6,9\times0,3.\\ \Leftrightarrow\left(y+3,02\right):1,5=2,07.\\ \Leftrightarrow y+3,02=3,105.\\ \Leftrightarrow y=0,085.\)

\(b.16,15:\left(y\times19\right)=17.\\ \Leftrightarrow y\times19=0,95.\\ \Leftrightarrow y=0,05.\)

\(c.0,5\times y:5=10\times0,2.\\ \Leftrightarrow0,5\times y:5=2.\\ \Leftrightarrow0,5\times y=10.\\ \Leftrightarrow y=20.\)

bài đâu

tui hong giúp zì cả ý:))

đề j kì vậy

TĐC với tế bào.

bài đây hả?

Bài 2:

a: Xét ΔAMN và ΔAMP có

AM chung

MN=MP

AN=AP

Do đó: ΔAMN=ΔAMP