Q. A local business owner is considering adding another employee to his staff in an effort to increase number of hours store is open per day.

If employee will cost owner $4,000 per month and store takes in $50/hour in revenue with variable costs of $15/hour, how many hours must new employee work for owner to break even?

Q. . A computer with an 8-KB page, a 256-KB main memory, and a 64-GB virtual address space uses an inverted page table to implement its virtual memory. How big should hash table be to ensure a mean hash chain length of less than 1? Assume that hash table size is a power of two.