Answer:
Lily drank 5 cartons of juice in February.
Step-by-step explanation:
From the question, we're told that in January, Lily drank 2 1/2 cartons of juice and drank twice of that amount in February, so all we need to do is multiply the amount she drank in January by 2 to get the amount she drank in February.
Solving this, we'll have;
Therefore, Lily drank 5 cartons of juice in February.