This question presents two very specific questions about altimeter calculations. As currently written, there is (in my opinion) a very high probability that the questions come directly from a written test or sample test.
Should we answer such questions? Other SE sites generally have a low tolerance for people who ask 'give me the answer please' questions - especially ones that are obviously taken from a test - and show no interest in understanding the concepts. (This is not intended as a negative comment on the OP in this case; he may well be genuinely trying to understand the concept.)
As one commenter has already noted, answering this question will have little or no value for other visitors (unless they happen to be taking exactly the same test). That argues for closing the question as being too local/specific.
On the other hand, if someone is struggling to understand how these calculations work in general then I think that would be a very good question, although in this case the OP didn't explain what problem he had doing the calculation himself.
I suppose that ideally we could try to edit/comment these questions to make them about the general calculation method rather than answering just one specific example?