Question

ajutor!!!!!! va rogg

Answer 1

$\frac{a}{3} = \frac{b}{7} = \frac{30}{10} = 3 \\ a = 3 \times 3 = 9 \\ b = 7 \times 3 = 21 \\ raspuns \\ a = 9 \\ b = 21 \\ succes$