Step-by-step explanation:
[tex] \because \sqrt{18} = 4.24264069 \\ \\ \therefore \: 4 < 4.24264069 < 5 \\ \\ \therefore \: 4 < \sqrt{18} < 5 \\ \\ \sqrt{18} \: fall \: between \: 4 \: and \: 5 \\ \\ \because \sqrt{18} = 4.24264069 \approx \: 4 \\ \\ \therefore \: 4 \: is \: closer \: to \: \sqrt{18} [/tex]
