Answer: Choice C) [tex]3.9098 \times 10^8[/tex]
=========================================
Work Shown:
[tex]4.8388 \times 10^8 - 9.29 \times 10^7\\\\4.8388 \times 10^8 - \left(0.929\times10^{1}\right) \times 10^7\\\\4.8388 \times 10^8 - 0.929\times10^{1+7}\\\\4.8388 \times 10^8 - 0.929\times10^8\\\\\left(4.8388-0.929\right) \times 10^8\\\\3.9098 \times 10^8\\\\[/tex]
-----------------
Side notes:
- [tex]4.8388 \times 10^8 = 483,880,000[/tex] = almost close to 484 million
- [tex]9.29 \times 10^7 = 92,900,000[/tex] = close to 93 million
- [tex]3.9098 \times 10^8 = 390,980,000[/tex] = just a bit under 391 million
