Answers:
7. 12
8. -√18
9. √220
Step-by-step explanation:
To find out which is greater, we must eliminate the radical symbol.
#7
[tex]\sqrt{88}[/tex] = 9.38083151965
9.4 < 12
#8
[tex]-\sqrt{18}[/tex] = -4.24264068712
-4.2 > -6
#9
[tex]\sqrt{220}[/tex] = 14.8323969742
14.5 < 14.8
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