Final answer:
The company's average gasoline cost per mile traveled by the cabs is $0.08.
Step-by-step explanation:
To find the company's average gasoline cost per mile traveled by the cabs, we need to divide the total cost of gasoline by the total miles traveled.
First, let's find the total cost of gasoline. Each gallon of gasoline cost $1.20, and the cabs used a total of 600 gallons. Therefore, the total cost of gasoline is $1.20 x 600 = $720.
Next, let's find the average gasoline cost per mile. The cabs traveled a total of 9,000 miles. Therefore, the average gasoline cost per mile is $720 / 9,000 = $0.08.
Therefore, the company's average gasoline cost per mile traveled by the cabs is $0.08.