Answer
(a) $5.9*10^{12}$
(b) $4*10^{-13}$
(c) $3.3*10^{19}$
Work Step by Step
(a) 5,900,000,000,000 mi.
$5,900,000,000,000=5.9*10^{12}$ (move decimal place 12 places to the left)
(b) 0.0000000000004 cm.
$0.0000000000004=4*10^{-13}$ (move the decimal point 13 places to the right)
(c) 33 billion billion.
A billion is $10^9$, so $33$ billion billion$=33*10^9*10^9=33*10^{18}=3.3*10^{19}$ (move the decimal point 1 time to the left)
