To determine how much time the dehumidifier can run before it becomes full, we need to set up an inequality based on the amount of water it can hold and the rate at which it removes water from the air.
Let \( t \) be the time in hours that the dehumidifier runs. Since the dehumidifier removes 1.6 pints of water per hour, the total amount of water it removes after \( t \) hours is \( 1.6t \) pints.
The dehumidifier can hold up to 40 pints. Therefore, we want to set up an inequality where the amount of water removed does not exceed the maximum capacity of the dehumidifier:
\[ 1.6t \leq 40 \]
This inequality represents the relationship we are looking for.
To clarify, the option number representing this inequality would be the one corresponding to:
\[ 1.6t \leq 40 \]