The better option for Shantelle is given as follows:
The company that represents the best option is represented analyzing the linear functions given at the end of the answer.
The function that has the graph at the bottom will always represent the better option, as it means that the cost is less for the given number of days.
Then the better options are given as follows:
The graph with the functions for the cost for both companies is given by the image shown at the end of the answer.
The problems asks for when each option is the best.
More can be learned about linear functions at https://brainly.com/question/24808124
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