Answer
a) M is mega or 10 raised to the power 6, so $6\times10^{6}m=6Mm$
b) There are approximately 3.28 feet in 1 meter, so $6ft\times\frac{1m}{3.28ft}=2m$
c) micro is $10^{-6}$ so $10^{-6}m= 1 micron$
d) n (or nano) is equal to $10^{-9}$, so $3\times10^{-9}m=3 nm$
e) n (or nano) is equal to $10^{-9}$, so $3\times10^{-10}m=0.3nm$
Work Step by Step
a) M is mega or 10 raised to the power 6, so $6\times10^{6}m=6Mm$
b) There are approximately 3.28 feet in 1 meter, so $6ft\times\frac{1m}{3.28ft}=2m$
c) micro is $10^{-6}$ so $10^{-6}m= 1 micron$
d) n (or nano) is equal to $10^{-9}$, so $3\times10^{-9}m=3 nm$
e) n (or nano) is equal to $10^{-9}$, so $3\times10^{-10}m=0.3nm$