Clarie's backyard is in the shape of a rectangle and has a length of 19.5 feet. it cost her $945 to fence in the yard. if fencing costs $15 per foot, what is the width of clarie's backyard?

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The domain of a function can be represented by which one of the following options? o a. a set of output values o b. a set of f(x) values o c. a set of input values o d. a set of both input and output values