3.a yogurt shop offers 6 different flavors of frozen yogurt and 12 different toppings. how many choices are possible for a single serving of frozen yogurt with one topping?
144
72
36
665,280
4.in how many different orders can you line up 8 cards on a table?
8
1
1,680
40,320
5.there are 10 students participating in a spelling bee. in how many ways can the students who go first and second in the bee be chosen?
1 way
90 ways
3,628,800 ways
45 ways