\[\boxed{\mathbf{3.}\mathbf{94}}\]
Пояснение.
Решение.
\[\textbf{а)}\ 14\ :a = 14\]
\[a = 1.\]
\[\textbf{б)}\ m\ :25 = 1\]
\[m = 25.\]
\[\textbf{в)}\ 1\ :b = 1\]
\[b = 1.\]
\[\textbf{г)}\ x\ :1 = 1\]
\[x = 1.\]
\[\textbf{д)}\ k\ :10 = 0\]
\[k = 0.\]
\[\textbf{е)}\ t\ :t = 1\]
\[t - любое\ число.\]