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⛩️use the laws of exponent to simplify the following nnumber⛩️
1.h⁷•h¹⁹

2.[(9/28)¹³]⁷

3.(12k⁵)(4k³)

4.w⁷⁸/w⁴⁵

5.17v¹⁶/v⁷​