i just need the last question!!!
Let S={1,2,3,4,5,6,7,8,9,10} a. How many subsets are there of cardinality 6?
210
210 (Note: you can enter "C(n,k)" for ().)
b. How many subsets of cardinality 6 have {2, 3, 5} as a subset?
35
35
c. How many subsets of cardinality 6 contain at least one odd number?
210
210
d. How many subsets of cardinality 6 contain exactly one even number?
42
42