Answer:
Image attached.
Step-by-step explanation:
We will use a calculator to simplify the expressions.
[tex]\left(4.5\cdot10^{4}\right)\cdot\left(6.8\cdot10^{-8}\right)=0.00306=3.06\cdot10^{-3}[/tex]
[tex]\left(2.8\cdot10^{2}\right)\cdot\left(6.5\cdot10^{-7}\right)=0.000182=1.82\cdot10^{-7}[/tex]
[tex]\frac{\left(7.4\cdot10^{-5}\right)\left(3.8\cdot10^{3}\right)}{\left(9.3\cdot10^{-4}\right)\left(3.2\cdot10^{5}\right)}=0.00095=9.45\cdot10^{-4}[/tex]
[tex]\frac{\left(5.6\cdot10^{-3}\right)\left(7.7\cdot10^{-9}\right)}{\left(8\cdot10^{-2}\right)\left(3.5\cdot10^{-6}\right)}=0.000154=1.54\cdot10^{-4}[/tex]
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