could you please solve these questions?

10. Five pepple run in a 100 metre race. How many different ways can the race finish? A. 5 B. 25 C. 120 D. 600 11. How many ways can 8 people sit around a circular table if there are two couples that insist on sitting together? This does not mean these 4 people must sit together; just each couple must sit together. A. 480 B. 5040 C. 720 D. 600 12. In a lottery. 4 numbered balls at random are drawn from container holding 30 in total. A man wants to be absolutely certain he wins by purchasing enough tickets to cover all possibilities. If it takes him 10 seconds to fill out and purchase one ticket. approximately how long will it take for him to purchase all of them? A. 7.6 hours B. 7.6 days C. 3 days D. 76 days 13. A restaurant offers choices of 6 entrees. 10 main courses. and 12 deserts. How many meals consisting oi one entree. one main course and one desert is possible? A. 28 B. 1.25 x 1013 C. 720 D. 3.05 >( 1029 14. A license plate consists of three letters followed by three digits. There are 245 three-letter arrangements that are considered obscene. and hence are not allowed on the license plate. How many plates are available with this restriction? A. 17 576 000 B. 17 575 575 C. 13 269 880 D. 17 331 000 Use the following information to answer the next question John is deciding which courses he should take for his first year at university. He has to take one each of courses in math. social studies. english and science. There are 2 different math courses. 4 different social studies courses. 3 different english courses, and 5 different science comses. Assuming that no combination of courses results in a schedulin- conflict. 15. HOW many different options does he have in creating his timetable? A. 120 B. 64 C. 16 D. 14