Please help me do this question!!!!!

Question

(C): 116.98GB
Assuming a disk should never get more than 85% full, and assuming you were generating 200MB of new data per week, at what point would you need to add another hard disk to this PC? How long until you have to add more storage space?Explain your answer and show how you calculated it. 1GB=1000MB
Thanks a lot

Answer 1

200MB = .2GB

.85(116.98) = .2x, where x = number of weeks.

I'll let you do the calculations.

Answer 2

x=5, right? I kind of confused about this question. Can you give me more explanation.
Thanks