I will need the exact answer for this. I tried and it came out all wrong.

Homework 5 - Demand paging problems (page replacement algorithms): 1. For the following reference string apply the FIFO page replacement algorithm. 2. For the following reference string apply the OPT page replacement algorithm. 3. For the following reference string apply the LRU page replacement algorithm. 4. For the following reference string apply the LFU page replacement algorithm