1. write [tex]\frac{3}{8}[/tex] in decimal form.
2. simplify (3+[tex]\sqrt{3}[/tex])(3-[tex]\sqrt{3}[/tex])
3. find 4 irrarational numbers between 0.1 and 0.2
4. Rationalise the denominator of [tex]\frac{1}{3+\sqrt{7}}[/tex]
Maths class 9 number system .
steps needed.