C. add 3 to 15 because the sequence is +3 every time
1 milliliter = 0.001 liters
400 milliliters = 0.4 liters
Therefore, 4 liters is greater than 400 milliliters
Can you elaborate more on the question?
The vertex of the parabola is <span><span>(<span>2,1</span>)</span><span>(<span>2,1</span>)</span></span>
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So, the axis of symmetry is the line <span><span>x=2</span><span>x=2</span></span>
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