Car inspection: Of all the registered automobiles in a city, 6% fail the emissions test. Eight automobiles are selected at rando to undergo an emissions test. Round the answers to four decimal places. Part 1 of 4 (a) Find the probability that exactly three of them fail the test. The probability that exactly three of them fail the test is

Alex's Evil Twin wishes to steal 18 piece of candy from the 5 kids in his neighborhood. However, George only has 15 pieces of candy (All pieces of candy are identical, but we can tell the kids apart) How many ways are there for Alex's Evil Twin to steal the candy?

How can I solve this

For this problem, assume the test had 6 true-false questions and 8 multiple-choice questions, and that each multiple-choice question had 5 choices. How many different answer sheets can be submitted?