Plz help need anwsers ASAP The line plot shows the amount of water used by students during an experiment.

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​Part A
Write and evaluate an expression using addition and multiplication to determine the total number of cups of water used by the students during the experiment.
​Show or explain each step you used to evaluate the expression.
Enter your expression and your work or explanation in the box provided.

Part B
​The water used by the students during the experiment was poured from a beaker. After the water was poured,
gallon of water was left in the beaker.
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What was the total number of fluid ounces of water in the beaker before the water was poured by the 12 students? (Use gallon fluid ounces.) Show or explain each step you used to determine your answer.
Enter your answer and your work or explanation in the box provided.