Question

Помогите решить 8 задание

Answer 1

$3ab^{4}=5\\\\ab^{4}=\frac{5}{3}\\\\\\12ab^{4}=12*\frac{5}{3}=20\\\\\\6a^{3}b^{12}=6*(ab^{4})^{3}=6*(\frac{5}{3})^{3}=6*\frac{125}{27}=\frac{250}{9}=27\frac{7}{9}$