Probability practice question.

A car dealership has 6 red, 11 silver, and 5 black cars on the lot. Ten cars are randomly chosen to be displayed in front of the dealership.

Find the probability that:

A). 4 cars are red and the rest are silver (round to 4 decimal places)

B). 5 cars are red and 5 are black (round to 6 decimal places)

C). exactly 6 cars are red (round to 5 decimal places)