Combo Probability

If you select a marble without looking, how likely is it that you will pick a black one?

If you select a marble without looking, how likely is it that you will pick a black one?

If you select a marble without looking, how likely is it that you will pick a black one?

If you select a marble without looking, how likely is it that you will pick a white one?

What is the probability of drawing a blue color and a number 4?

Kimberly has seven colors of lanyards. She uses three different colors to make a key chain. How many different combinations can she choose?

What is the probability of drawing a red color and a number 3?

Joleen is on a shopping spree.  She buys six tops, three shorts and 4 pairs of sandals.  How many different outfits consisting of a top, shorts and sandals can she create from her new purchases?

Six friends are going to play a ball game. Each team has 3 players. How many different team combinations are possible?