Question 1149086
this is 450=300(1+.05/12)^nt compoundings
1.5=nt(log1+(.05)/12))
log both sides
0.1761=nt *0.0018 the latter being log 1.004166667
nt= quotient=97.52 compoundings or 8 years 1.5 months or about 8.13 years

continuously it is 1.5=e^(rt)
ln 1.5=rt=0.05*t
t=8.109 years