Please solve asap my deadline is close.

The number of visitors of a certain museum entering in an hour is distributed as a Poisson with parameter 10. We suppose the distribution to be independent and identically distributed for all opening lime which is from 9 am. to 6 pm. Compute: l. the probability that in a day nobody visits the museum; 2. the probability that from 10 to 11 am. less than 5 visitors enter in the museum; 3. the probability that from 5.30 pm. up to the closing time 2 visitors enter: 4. the probability that 3 of the 20 visitors who enter from 3.30 to 4.30 are kids. knowing that the percentage of adults who entered in that hour is 70%