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# A) ( 7.72×10^6 )( 7.54×10^5 ) = B) 9.89×10^4 - 7.54×10^5 / 7.89×104 = This is...

A) ( 7.72×10^6 )( 7.54×10^5 ) = B) 9.89×10^4 - 7.54×10^5 / 7.89×104 =

This is two equations, I need to know how to work them out - the first is addition and the second in division.

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