(16^{\frac{1}{2}})*4-\frac{2*\sqrt{\frac{1}{4}}+1-0,5}{(\sqrt{(\frac{9}{4})^3}}=\sqrt{16}*4-\frac{2*\frac{1}{2}+0,5}{(\frac{3}{2})^3}=4*4-\frac{\frac{3}{2}}{\frac{9}{4}}=16-\frac{\frac{3}{2}}*\frac{4}{9}=16-\frac{2}{3}=15\frac{1}{3}
25\%*15\frac{1}{3}=\frac{1}{4}*46=11,5