[填空题]
Melinda has 300000 in a privr5ttzxiyq- /8 jur e3 a;*xgr:ate foundtw dd91dwzhro0xn5--rjm) * 9a/q f ecation. Each year she donates 10% of the money remaining in her privaj-tm 9dhx/90qronredc1 d5)zf-aww*te foundation to charity.
1.Find the maximum number of years Melinda can donate to charity while keeping at least 100000 in the private foundation.
Hence the maximum number of years is .
Bill invests $400000 in a bank account that pays a nominal interest rate of 4 %, compounded quarterly, for ten years.
2.Calculate the value of Bill's investment at the end of this time. Give your answer correct to the nearest dollar.
FV≈ .
