1. A ten year annuit pays $400 at the end of each quarter for the first 5 years, increasing to $600 per quarter thereafter. The annual rate of interest is 12.55% . Find the value of the annuity at the end of 10 years after the last payment.
2. Pyrrha, a 12-year-old dependent of Epimetheus and Pandora, received $2,200 of interest income in 2017. Her parents' marginal tax rate is 35%. What is Pyrrha's gross tax liability for the year?