During last year, in 2020, Helen earned the following: $80,000 from employment, $2000 interest from bank accounts, and $25,000 profits and dividends. Of this income, she has spent $50,000 on food and other consumption goods, $20,000 on vacations abroad, saved $10,000 in her retirement account, spent $20,000 on purchasing extra shares and $10,000 on new computers for her business.

a) What was the increase in GDP generated by Helen's activity?

b) What was Helen's contribution to each category of GDP?

c) What is the value of production that was newly created by Helen's productive activity?