Answer
$30,700.05809$
Work Step by Step
RECALL:
$10^{4} = 10,000
\\10^{2} = 100
\\10^{-2} = \dfrac{1}{10^2} = 0.01
\\10^{-3} = \dfrac{1}{10^3} = 0.001
\\10^{-5} =\dfrac{1}{10^5} = 0.00001$
Thus, the given expression is equivalent to:
$=(3 \times 10,000) + (7 \times 100) +(5 \times 0.01) + (8 \times 0.001)+(9 \times 0.00001)
\\=30,000 + 700 + 0.05 + 0.008 + 0.00009
\\=30,700.05809$