Question

alguém me ajuda nesse aí ​

Answer 1

28$\frac{12}{x} = \frac{6}{2}$

$\frac{12}{x} = 3$

$x = \frac{12}{3} \\ x = 4$

29

$\frac{10}{y} = \frac{8}{4}$

$\frac{10}{y} = 2 \\ y = \frac{10}{2} \\ y = 5$