Answer
a) $1.10\times 10^8 mg$
b) $6.83\times10^{-5}m^3$
c) $7.2\times 10^3 L$
d) $6.24\times 10^{-14} lbs$
Work Step by Step
a)
$1lb=453.6 g$
$242lb=109771.2 g$
$109771.2 g \times 1000 = 109771200mg$
$=1.09771200\times10^8 mg$
$=1.10\times 10^8 mg$
b)
$1cm^3=1\times10^{-6}m^3$
$68.3cm^3=1\times10^{-6}m^3$
$=6.83\times10^{-5}m^3$
c)
$1L=1\times10^{-3} m^3$
$7.2 m^3 = 7200 L$
$=7.2\times 10^3 L$
d)
$1 pg = 1\times10^{-12} g = 2.20× 10^-15 lbs$
$28.3 pg = 6.24\times 10^{-14} lbs$