Question

Pre-calculus, binomial theorem, HELP!

1. Find the 7th term of the expansion of (3c + 2d)^9.

2. Find the 6th term of the expansion of (2p - 3q)^11.

3. Rafael is taking a test that contains a section of 12 true-false questions. How many of the possible groups of answers to these questions have exactly 8 correct answers of false?

4. Rafael is taking a test that contains a section of 12 true-false questions. How many of the possible groups of answers to these questions have at least 6 correct answers of true?

5. Find the 8th term of the expansion of ((1/2)x-y)^10.