Mario's $15,000 car depreciates in value at a rate of 19% per year. The value, V, after t years can be modeled by the function
V = 15,000(0.81). Which function is equivalent to the original
function?
(1) V=15,000(0.9)^9t
(2) V=15,000(0.9)^2t
(3) V=15,000(0.9)^t/9
(4) V=15,000(0.9)^t/2

Answer asap and if you do you will get brainliest. catherine buys a gallon of ice cream from the store. after taking it home, she eats a fifth of a gallon of ice cream. her sister eats some of the ice cream as well. if two-thirds of the original amount of ice cream is left, then what fraction of a gallon of ice cream did her sister eat?