Simon makes 30 cakes he gives 1/5 of them to sali
he gives 10% of the 30 cakes to jane

what fraction of the cakes does he have leftv

Problem 3 a bank charges a service fee of $7.50 per month for a checking account. a bank account has $85.00. if no money is deposited or withdrawn except the service charge, how many months until the account balance is negative