Adeposit of $9,500 is made into a savings account which earns 5 1/10% interest compounded semi-annually. if no additional deposits or withdrawals are made, which amount is the total balance at the end of 4 years?
a) $11,620.07
b) $11,634.82
c) $11,639.79
d) $11,644.80

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?