Caitlin has a movie rental card worth $85. After she rents the first movie, the card's value is $82.25. After she rents the second movie, its value is $79.50. After she rents the third movie, its value is $76.75. Assuming the pattern continues, which function defines A(n), the amount of money on the rental card after n rentals? A(n)=85n-2.75 A(n)=85-2.75n A(n)=2.75n-85 A(n)=2.75-85n