Answer:
1.
[tex]14 \sqrt{3} = 24.25[/tex]
2.
[tex]21 \sqrt{2} = 29.70[/tex]
3. there's no 3???
4.
[tex]2 \sqrt{21} = 9.16[/tex]
5.
[tex] \frac{5 \sqrt{3} }{3} = 2.88[/tex]
Step-by-step explanation:
1. (11+5-2) √3 = 14√3
2. 14√2 + 9√2 - 2√2 = 21√2
3.
4. 2√3•7 = 2√21
5.
