1) The number of terms in the expansion of (2x - 3y)9 is ?

2)From a group of 4 adults and 3 children, 3 people are to be selected tosing together. If at most 2 adults can be selected, the number of ways thegroup can be chosen can be calculated using ?

3)A hand of 5 cards is dealt from a standard deck of 52 cards. The numberof ways that the hand could be made of 2 Kings, 2 Queens, and 1 Ace is ?

4)A family of 5 with a mother, father, and 3 daughters is to be arranged for a photograph.The number of ways this can be done if all four of the females must be standing together is ?