Question

Me pueden ayudar es urgente!​

Answer 1

1)

$\frac{9}{3} = \frac{15}{x}$

9x=45

X=5

2)

$\frac{3.9}{5} = \frac{x}{3.4}$

X=2,652

3)

${h}^{2} = {2} \times 8 \\ h = 4$