Answer:
The price per kilogram is $6
Explanation:
It is given that
Number of kilograms of olive oil purchased by Alice is

The cost is $27
so we have
cost of
kg of olive oil = $ 27
To find the find the cost of 1 kg of olive oil we will use unitary method
Cost of 1 kg of olive oil =

( since
)

Hence the price per kilogram is $6