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Montano1993 [528]
3 years ago
5

Please help me! Thank you so much.

Mathematics
1 answer:
Tpy6a [65]3 years ago
4 0

Answer:

57

Step-by-step explanation:

3^r = 19

Multiply each side by 3

3 * 3^r = 19 *3

We know that a^b * a^ c = a^ ( b+c)

3^1 * 3^r = 19 *3

3^(r+1) = 19*3

3^(r+1) = 57

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