Write the whole number twenty-seven thousand, five hundred in standard form

Write a function that matches the description. a cosine function has a maximum of 5 and a minimum value of -5. f (r) =

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Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.