Answer:
Its operating expenses were $ 3.588 B
Explanation:
The operating ratio is the ratio of operating expense to the operating or revenue generated.
This ratio is used for comparison of results from the operations of various industries.
Given that the operating ratio of 78% and the operating revenue is $4.6B, the operating expense T may be computed as
78% = T/4.6 * 100%
T = 4.6 *.78
= $3.588 B
