password contains 2 letters and 2 digits.  How many passwords are possible if repetitions are NOT allowed?

A kindergarten teacher has 9 books about a holiday. In how many ways can she select 3 of the books to read to her class in the week before the holiday?

How many ways can 3 pizza toppings be selected from a choice of 12 toppings if each topping can be chosen only once? Enter your answer as a whole number.

A person has 4 hats, 3 pairs of gloves, and 5 scarves. Assuming they all match, how many ways can this person choose 1 hat, 1 pair of gloves, and 1 scarf on a cold day?

With six card, each card has 32 numbers on it. If Fraudini added two new cards (and updated the old ones) so that he could "read" your mind for larger number  What numbers would appear in the upper left-hand corners of the new cards? Explain.   What would be the largest number that he could "read" (it was 63 for six cards)? Explain .   Which of his eight cards would have the number 213 on them? Explain.