A dance teacher wants to build a stadium in a rectangular yard space along one side of her house. The total area she can fence in is 800 feet. Create a model to determine a possible length and width of the yard. *Remember* AREA = LENGTH TIMES WIDTH

12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

Sam opened a money-market account that pays 3% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?

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