Respuesta :

stormiarmy
Answer: B) 8•10^-1

Use the commutative property to reorder the terms.
(4•2)•(10^4 • 10^-5 )

Multiply the numbers. Multiply the terms with the same base by adding their exponents.
8•10^4-5

Calculate the difference and you get 8•10^-1

Hope this helps ʕ•ᴥ•ʔ

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