Step-by-step explanation:
We are told that Samantha drinks 2/3 gallon of water daily
We are then asked to find the volume of water that she will drink in 30 days
To do so, we will have:
![\begin{gathered} if\text{ } \\ (2)/(3)gallons\text{ =1 day} \\ for\text{ } \\ 30\text{ days, this will be} \\ (2)/(3)gallons\text{ per day}*30days\text{ =}(60)/(3)=20gallons \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/p7j47o4jnbqm6cbhb8hfo9r2u3emawfzzh.png)
Therefore, in 30 days, she will drink 20 gallons of water
The answer is 20 gallonsans