Direct coversions: The old system is dropped completely and the new system being implemented at a single point in time.
The question doesn't directly state whether the old system system will be dropped all together at a time.
So the better answer would be Pilot conversion as the new system is...
I’m having trouble with Q3 and Q4.
Q3) I’ve done multiple tries like dividing her yearly $100 by 12 months and still can’t get the right answer. It is compounded monthly but she only invests once at the beginning of each year.
Q4) Got close to the answer.