David makes a sequence of 35 monthly deposits of 430 dollars each into an account paying interest convertible monthly. Immediately after making the 35th deposit, the account balance is 16450.23 dollars. What is the nominal rate of interest convertible monthly

Simon, aged 10, is invited to a classmate's birthday party at an exclusive ski resort on march 15th. the day will include 4 hours of snowboarding, lunch and birthday cake. simon's mother checks a box on the invitation that says "yes, we will attend" and returns it to the classmate's address. unfortunately, they later don't attend the party when simon comes down with the flu. on march 17th, simon's mother receives an invoice in the mail from simon's classmate for $35 that says, "party no-show fee." can simon's classmate collect the fee?