Answer:
Step-by-step explanation:
The amount she deposited is irrelevant
we want it to double
continuous compounding formula
m = e^rt m = multiplier = 'double' = 2
r = decimal interest rate per year = .0675
t = years = ?
2 = e^(.0675 t) take ln of both sides
ln 2 = .0675 t
t = 10.3 years