Question

ayudenme plis a resolver esto lo y coronita siiiiii ​

Answer 1

$\frac{m}{5} = \frac{9}{12} = \frac{m}{5} = \frac{3}{5} = m = 3 \\ \\ \frac{40}{12} = \frac{30}{n} \\ \frac{40}{12} = \frac{30}{n} = 0 \\ \frac{10 }{30} = \frac{30}{m} \\ 10m = 90 \\ m = 9.m \\ m = 9$