How many propsals get paid

For Long-Term SteemDAO Funding 10% of overall inflation (pulled from the rewards pool) would be used to fund proposals made through the SteemDAO/SPS. So from my understanding of that info, there is no exact number of max projects that are too be funded. Instead the max is based on the amount pulled from the rewards pool (10%). If one project was to get all that (not going to happen) then only one project would get funded.

I'm not sure if there is answers to your other questions yet. I think we may have to wait to see what projects get funded and then we may have those answers. I would be interested in knowing the answers as well.