Please help me! I would just like an explanation of how to solve it, If you don’t mind.

Answer:
C. 105m
Step-by-step explanation:
d = w/f
= 1.18 x [tex]10^{6}[/tex] / 1.12 x [tex]10^{4}[/tex]
= 1.05 x [tex]10^{6-4}[/tex]
= 1.05 x [tex]10^{2}[/tex]
= 105m