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The cost of renting a carpet cleaner is $52 for the first day and $26 for each additional day. Which of the C(d) following functions gives the cost, in dollars, of renting the carpet cleaner for d days, where d is a positive integer? = 26d+26
Correct answer: A (parsed from the explanation — this source omits an answer key for this item)
Explanation
$52 Choice A is correct. It’s given that the cost of renting a carpet cleaner is for $26 the first day and for each additional day. Therefore, the cost C^dh, in dollars, of renting the carpet cleaner for d days is the sum of the cost for the first day, $52 - $26 -1 , and the cost for the additional d 1 days, ^d h. It follows that =52+26 -1 =52+26 -26 C^dh ^d h, which is equivalent to C^dh d , or =26 +26 C^dh d . Choice B is incorrect. This function gives the cost of renting a carpet cleaner for $78 $52 $26 d days if the cost is , not , for the first day and for each additional day. Choice C is incorrect. This function gives the cost of renting a carpet cleaner $26 $52 $52 $26 for d days if the cost is , not , for the first day and , not , for each additional day. Choice D is incorrect. This function gives the cost of renting a $130 $52 $52 carpet cleaner for d days if the cost is , not , for the first day and , $26 not , for each additional day.
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