Answer:
2.08 × [tex]10^{7}[/tex]
Step-by-step explanation:
Multiply 4 × 5.4 to get 20.8. Then multiply [tex]10^{-2}[/tex] × [tex]10^{8}[/tex] = [tex]10^{6}[/tex]
However, that is not an answer. So, you can divide 20.8 by 10 and multiply [tex]10^{6}[/tex] × 10.
Then you get 2.08 × [tex]10^{7}[/tex]