Answer
Using dimensional analysis gives:
a. $1 km^{3} = 10^{9} m^{3} $
$115 / 10^{9} m^{2} = 1.15 \times 10^{-7} km^{2} $
b.$ 1 dm^{3} = 1000 m^{3} $
$115 x 1000 = 1.15 \times 10^{6} dm^{2} $
c.$ 1 m^{3} = 10^{6} cm^{3} $
$115\times10^{6} cm^{3} = 1.15\times10^{8} cm^{3}$
Work Step by Step
Using dimensional analysis gives:
a. $1 km^{3} = 10^{9} m^{3} $
$115 / 10^{9} m^{2} = 1.15 \times 10^{-7} km^{2} $
b.$ 1 dm^{3} = 1000 m^{3} $
$115 x 1000 = 1.15 \times 10^{6} dm^{2} $
c.$ 1 m^{3} = 10^{6} cm^{3} $
$115\times10^{6} cm^{3} = 1.15\times10^{8} cm^{3}$
