1.) A person can order a new car with a choice of five possible colors without air conditioning and with or without automatic transmission. In how many different ways can a new car be ordered with regard to these options?
2.) A competition with a6 entrants has four winners. First prize is 1000 dollars, second prize is 500 dollars, third price is 100 dollars and fourth prize is a free lunch at any resturant of choice. No person can win more than one prze. How many different ways can the prize be awarded?
3.) How many ways can you select 3 of your 10 friends to go to a concert with you?