What do the following symbols mean A I P F When the interest rate is 8% per year all of the following are equivalent to 5000 now except 4629 one year ago F = P(F/P, i, n) 5400 one year hence P=F(P/F, I, n) 4286 two years ago F=P(F/P, l, n) 6050 two years hence P=F(P/F.i, n) The operating cost of a small machine is $800 in year 1 and increases by 25 per year through year 10. At an interest rate of 8% per year the present worth of the machine is nearest to 3550 4719 6017 8411