[填空题]
On 1st of January 2022 , Grace invests P dollars in an accw4w eex9v0j( y.y mnnk71q)bg lbm2,loun iu1-d0wg+ jsrgqmfql w-2e80 t that pays a nominal annual in+ i-w0r8-wgf0 sdu 2 jgm1eqlqterest rate of 6 % , compounded quarterly. The amount of money in Grace's account at the end of each year follows a geometric sequence with common ratio, $\alpha$ .
1. Find the value of $\alpha$ , giving your answer to four significant figures.
Grace makes no further deposits or withdrawals from the account.≈
2. Find the year in which the amount of money in Grace's account will become triple the amount she invested. years
