Marco is reading a book that is 100 pages long. He has written 66 pages. What percent of the pages ahs he written? What percent of the pages does he have to write?

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

I'm confused on this could anyone me and show me what i need to do to solve it.

Ineed someone to me answer my question i have to have this done and knocked out