Betty Brewster received the following interest:

•             Luggage gift for purchasing a four-year certificate of deposit (fair market value): $50

•             Interest on passbook savings account: $15

•             Interest on certificate of deposit: $200

•             Dividends on share account savings in credit union: $150

•             Interest on State of Mississippi bonds issued to finance state highway construction: $300

What is the amount of interest income to be included in income?