Question

I know the answer but I want process​

Answer 1

Step-by-step explanation:

${2}^{n - 7} \times {5}^{n - 4} = 1250 \\ \frac{ {2}^{n - 4} }{8} \times {5}^{n - 4} = 1250 \\ {(10)}^{n - 4} = 10000 \\ {(10)}^{n - 4} = {10}^{4} \\ n - 4 = 4 \\ n = 8 \\ \\ hope \: it \: will \: help \: you$

Answer 2

Step-by-step explanation:

n=8

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