Chiều rộng của miếng đất là

24:3=8(m)

Diện tích miếng đất ban đầu là

8.20=160(m²)

Đáp số 160m²

Gọi x là số hạng sẽ được khi đó x thuộc Ưc(

a,(454-x)+4³=116. b, vì 15chia hết

(454-x)+64=116. Cho x+1 nên x

(454-x)=116-64. thuộc Ư(15)

(454-x)=52. Ư(15)={1;-1;-3;

x=454-52. 3;5;-5;-15;15}

x=402. Vậy x thuộc

{0;-2;-4;2;4;-6;

-16;14}

a,(-127)+208-73+92

=81-73+92

=8+92

=100

b,2353-(473-2153)+(-55+373)

=2353-(-1680)+218

=4033+218

=4251

2:

I like my neighbourhood because it is quiet and clean. The people are friendly and helpful. There is not small park near my house so I can play with my friends. However I dislike the traffic because it is someting noisy

I like my neighbourhood because it is quiet and clean. The people are friendly and helpful. There is a small park near my house, so I can play with my friends. However, I dislike the traffic because it is sometimes noisy.

Topic 2 I like my neighbourhood because it is quiet and clean. The people are friendly and helpful. There is a small park near my house, so I can play with my friends. However, I dislike the traffic because it is sometimes noisy.

Topic 2 : I like my neighbourhood because it is quiet and clean. The people are friendly and helpful. There is a small park near my house, so I can play with my friends. However, I dislike the traffic because it is sometimes noisy

Topic 2 I like my neighbourhood because it is quiet and clean. The people are friendly and helpful. There is a small park near my house, so I can play with my friends. However, I dislike the traffic because it is sometimes noisy.

Topic 2 : I like my neighbourhood because it is quiet and clean. The people are friendly and helpful. There is a small park near my house, so I can play with my friends. However, I dislike the traffic because it is sometimes noisy.