You start out with $10,000 in an account. How much must you contribute at the beginning of each year in order to end up with $100,000 after 20 years if you earn 3% per year? Enter the answer in dollar format without $ sign or thousands comma -> 3519.23 and not $3,519.23 or 3,519.23") How much more is a perpetuity of $1,000 worth than an annuity of the same amount for 20 years? Assume a 10% interest rate and cash flows at end of period. (Enter the answer in dollar format without $ sign or thousands comma -> 3519.23 and not $3,519.23 or 3,519.23)