please solve quickly

For what interest rate will an uniform cash flow of $40,000 per year for 20 years, (t=1 to 20) be equivalent to a present worth of $458,800 ? 8% 7% 4% 5% 6% = Given A=2000 for periods 2 to 9, i=7% (compounded per period), find the Future Value of this uniform series at t=11 (i.e., F11 = ?) F11 = ? 2000 2000 2000 2000 0 1 2 3 4 5 6 7 8 9 10 11 $21,055.8 $23,493.3 $18,862.5 $22,241.7 $17,935.1