HELP Without using a calculator, match each expression to the correct point.

Answer:
[tex]1)7.81 = a[/tex]
[tex]2)3\pi = b[/tex]
[tex]3) \sqrt{73} = c[/tex]
[tex]im \: not \: 100\% \: sure \: about \: b \: and \: c[/tex]
[tex]but \: i \: think \: i \: got \: it \: right \: \\ hope \: this \: helps[/tex]