#### Answer

a) $8.950\times10^{3}$
b) $1.0700\times10^{4}$
c) $2.40\times10^{-2}$
d) $4.7\times10^{-3}$
e) $9.383\times10^{2}$
f) $2.75482\times10^{5}$

#### Work Step by Step

a) 8950
Replace the comma three places to the left, so the exponential notation is $8.950\times10^{3}$
b) 10,700
Replace the comma four places to the left, so the exponential notation is $1.0700\times10^{4}$
c) 0.0240
Replace the comma two places to the right, so the exponential notation is $2.40\times10^{-2}$
d) 0.0047
Replace the comma three places to the right, so the exponential notation is $4.7\times10^{-3}$
e) 938.3
Replace the comma two places to the left, so the exponential notation is $9.383\times10^{2}$
f) 275,482
Replace the comma five places to the left, so the exponential notation is $2.75482\times10^{5}$