Answer:
Step-by-step explanation:
[tex]\frac{A}{B} =\frac{a}{8} \\\frac{B}{C} =\frac{12}{c } \\\frac{A}{B} \times \frac{B}{C}=\frac{a}{8} \times \frac{12}{c} \\\frac{A}{C} =\frac{12a}{8c} =\frac{3a}{2c} \\but~\frac{A}{C} =\frac{2}{1} \\\frac{3a}{2c} =\frac{2}{1} \\\\\frac{a}{c} =\frac{4}{3} \\a:c=4:3[/tex]
