\(100-x=3,7\times2,4\)

\(100-x=8,88\)

\(x=100-8,88\)

\(x=91,12\)

\(4,1\times2,1-3,96:1,1\)\(=8,61-3,6=5,01\)

7 m³ 5 cm³ = 7 000 005 cm³

2,5 dm³ = 2500 cm³

MSC: 36

\(\dfrac{13}{12}=\dfrac{13\times3}{12\times3}=\dfrac{39}{36}\)

\(\dfrac{19}{18}=\dfrac{19\times2}{18\times2}=\dfrac{38}{36}\)

MSC: 30

\(\dfrac{2}{3}=\dfrac{2\times10}{3\times10}=\dfrac{20}{30}\) 

\(\dfrac{3}{5}=\dfrac{3\times6}{5\times6}=\dfrac{18}{30}\) 

\(\dfrac{7}{10}=\dfrac{7\times3}{10\times3}=\dfrac{21}{30}\)

Chọn phương án D.

Chọn phương án A.

How much does a kilo of beef cost?

Chọn phương án B.

I wish it wouldn't rain tomorrow