I dont know where to start

10 balls are lined up on a table. 4 are red, 6 are white.

a) What is the probability that the 4 red balls come first?

b) What is the probability that the line of ten begin wit 4 white followed by a red?

c)What is the probability that the 4 red balls are side by side?

d) What is the probability that noone of the red balls are together?

e) What is the probability that no more than two red balls are side by side?

f) What is the probability that no more than 3 white balls are side by side?