Answer
a) $154.32 lbs$
b) $4.41504\times10^9 seconds$
c) $8.86\times10^4L$
Work Step by Step
a)
$1kg=2.20462lbs$
$70kg=70\times2.20462$
$\approx154.3234 lbs$
$=154.32 lbs$
b)
$1 year=365 days=(365\times86400) seconds$
$14\times10^{16}years=(14\times10^{16})(365\times86400)$
$\approx4415040000000000000000000 seconds$
$=4.41504\times10^9 seconds$
c)
$1m^3=1000L$
$88.6 M^3=88.6\times1000$
$=88600L$
$=8.86\times10^4L$
