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Find the area of a parallelogram with base 15 yards and height 21 2/3

Problem 3 a bank charges a service fee of $7.50 per month for a checking account. a bank account has $85.00. if no money is deposited or withdrawn except the service charge, how many months until the account balance is negative

Marco states that 7.696696669…… is a rational number because it is a repeating decimal. is he correct? justify your answer.