There is an abondon house with a fish tank in it that has 7 fish 4 of the 7 die and 2 fish get eaten by another fish haw many fish are left

Could somebody me with this radical simplification?

Acoin is tossed 4 times which of the following represents the probability of the coin landing on heads all 4 times

Charlene's parents deposit $500 in an account on the day she is born. the account earns a high interest rate of 9.2% compounded quarterly because charlene is not allowed to access the money until her 22nd birthday. how much money will charlene have on her 22nd birthday? a: $3,698.50 b: $5,921.31 c: $101,200 d: $ 824.58