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Algebra / Linear functions Difficulty: Easy

Gabriella deposits $dollar sign 35$ in a savings account at the end of each week. At the beginning of the $1st$ week of a year there was $dollar sign 600$ in that savings account. How much money, in dollars, will be in the account at the end of the $4th$ week of that year?

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Explanation

Choice D is correct. It’s given that at the beginning of the $1st$ week of the year there was $dollar sign 600$ in a savings account and Gabriella deposits $dollar sign 35$ in that savings account at the end of each week. Therefore, the amount of money, in dollars, in the savings account at the end of the $4th$ week of that year is $600 plus 4 left parenthesis 35 right parenthesis$ , or $740$ .

Choice A is incorrect. This is the amount of money, in dollars, that will be in the account at the end of the $4th$ week if Gabriella withdraws, rather than deposits, $dollar sign 35$ at the end of each week.

Choice B is incorrect. This is the amount of money, in dollars, that will be in the account at the end of the $1st$ week, not the $4th$ week.

Choice C is incorrect and may result from conceptual or calculation errors.