Please show your work and use the five-minutes formula as seen in the hint.

Suppose you are hosting a database server. A table in your database is accessed 20 times / sec on average. The size of the table is 1GB. The amount of hard drive allocated to store this table cost $10, and the throughput of the hard drive is 100MB / sec. The memory of your server costs $20/MB. Should you keep the table on the hard disk or in memory? Hint: calculate or identify what is the D, I, X, M, and P in the five-minutes rule formula