Answer:
1. 1/2 or .5 (same thing)
2. 1
3. -4k
4. 28n^5
Explanation:
1.
2/2^2 → 2/4 = .5
2.
3^4/3^4 → 81/81 = 1
3.
3k^2/7k = -4k
4.
7n^4 x 4n = 28n^5
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