Question

Please help explanation if possible

Answer 1

Answer:

N=18

Step-by-step explanation:

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Answer 2

Answer:

18

Step-by-step explanation:

use the concept of similarity and enlargement.

$\frac{15}{n} = \frac{5}{6 }$

$n = \frac{15 \times 6}{5}$

$n = 18$