Any help on solving this one?

#1
You roll two fair dice, one red and one green.
a) What is the probability of getting a number less than 5 on both?
b) What is the probability of getting a sum of 9 on the two dice?
c) What is the probability of getting a 5 on both?
 
#2
a) 4/6 * 4/6 = 16/36 = 4/9

b)There are a total of 36 possible combination when rolling two dice.

9 = 6+3, 3+6; 5+4 4+5, four combinations 4/36=1/9

c) 1/6 * 1/6 = 1/36