What’s the answer to these

Answer:
B. [tex]\sqrt{16} *\sqrt{4}[/tex]
Step-by-step explanation:
[tex]=\sqrt{16*4}[/tex]
[tex]=\sqrt{64}[/tex]
[tex]=8[/tex]
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[tex]=\sqrt{16} *\sqrt{4}[/tex]
[tex]=4*2[/tex]
[tex]=8[/tex]
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Hope this helps.