Giải:

         \(\dfrac{9}{A}\) = \(\dfrac{B}{8}\) = \(\dfrac{15}{20}\) = \(\dfrac{C}{24}\)

          \(\dfrac{9}{A}\) = \(\dfrac{15}{20}\) = \(\dfrac{3}{4}\)

           A = 9 : \(\dfrac{3}{4}\) = 9 x \(\dfrac{4}{3}\) = 12

          \(\dfrac{B}{8}\) = \(\dfrac{15}{20}\) = \(\dfrac{3}{4}\)

          B = \(\dfrac{3}{4}\) x 8 = 6

          \(\dfrac{C}{24}\)  = \(\dfrac{15}{20}\) = \(\dfrac{3}{4}\)

          C = \(\dfrac{3}{4}\) x 24 = 18

Vậy A + B - C = 12 + 6 - 18 = 0

Chọn b.0

Chọn B nha

bae bake beck kip a piupo the péno

Baking also helps me to relax after a busy week with lots of homework 

1 While I was riding home, I saw an accident

2 When he was young, he used to smoke a lot

3 While Jane was taking a bath, the phone rang three times

4 While I was having lunch, James arrived

5 While we were having dinner, the lights went out

6 When I heard the doorbell, I went to the door

7 While we were standing outside the cinema, someone picked my pocket

8 While I was having breakfast, the telephone rang

9 While they were cooking, somebody broke into their house

10 While I was learning my old lessons, my sister was watching TV

1 While I was riding home, I saw an accident

2 When he was young, he smoked a lot

3 While Jane was taking a bath, the phone rang three times

4 While I was having lunch, James arrived

5 While we were having dinner, the light went out

B. Reading

1 Students often play soccer, table tennis or badminton

2 They sometimes go swimming in the swimming pools

3 They often practice playing musical instruments in the school music room

4 They usually rehearse plays

5 They often get together and talk about their stamps

Giúp em ạ

Câu trả lời của em ạ

1. The cat eats its food faster than the dog.

2. Although he plays guitar well, but he doesn't like performing in front of others

1. The cat eats its food faster than the dog.

​2. Although he plays guitar well, he doesn't like performing in front of others.

1 I am fond of reading stories about famous scientists

2 They spend a lot of time doing DIY projects with their parents

3 Teen stress might come from conflicts with friends or siblings

1 I am fond of reading stories about famous scientists

to be fond of Ving: thích làm gì

2 They spend a lot of time doing DIY projects with their parents

spend + Ving: dành thời gian làm gì

3 Teen stress might come from conflicts with friends or sibling

Carry:mang                                                                                                Wrap:bọc