1 answer:
Answer: 
Step-by-step explanation:
Given
Two graphs are given, one is upward facing parabola and other is downward facing parabola.
From the graph, for downward facing parabola
When 
, it corresponds to 
Similarly, If 
, it corresponds to 
because 
cuts the y-axis at only one point.
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Step-by-step explanation:
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x = number of hours
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C. 2/3
Step-by-step explanation:
She is correct.
She starts with 50
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Answer:
Step-by-step explanation:
