Is the amount of money earned, in dollars, proportional to the number of cars sold?

Asequence of numbers begins with 12 and progresses geometrically. each number is the previous number divided by 2. which value can be used as the common ratio in an explicit formula that represents the sequence? 1/2 2 6 12

What is the nth term rule of the linear sequence below? 27 , 25 , 23 , 21 , 19 , . .

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