c)
[tex]25:b=6 \\25=6b\\25:6=b\\b=\frac{25}{6}[/tex]
[tex]d:4=5,5\\d=5,5*4\\d=22[/tex]
[tex]6:c=1,5\\6=1,5c\\c=\frac{6}{1,5}=4[/tex]
c)
[tex]\frac{5}{3}-5c=\frac{5}{4}\\\\\frac{5}{3}-\frac{5}{4} =5c \\\\ \frac{20}{12}-\frac{15}{12}=5c\\ \\ \frac{5}{12}=5c\\ \\ 5=60c\\c=\frac{5}{60}=\frac{1}{12}[/tex]
[tex]\frac{1}{2}p : \frac{7}{4}=8\\ \\\frac{1}{2}p*\frac{4}{7}=8\\\\\frac{4}{14}p=8\\ \\4p=112\\p=28[/tex]
