3. This question refers to the universal set S from question #2. 5 = {letters in the alphabet}. a. How mam; subsets are there of set S? b. How many subsets are there with 4 elements? o. How many subsets contain the letter A? 4. What is the value of term E- in row 31 of Pascal's Triangle? 5. Rewrite the expression (15?) in an equivalent "choosy\" of the form (1:) E. Rewrite the expression (15?) using Pascal's Formula 1 What row of Pascal's Triangle has the following sum? (3) + (711) + G) + ........ +(11 E 1) + (2) = 32353