hello
to solve this question, let's simply evaluate the expression
[tex]\begin{gathered} \frac{c-d^2}{7d} \\ c=11,d=5 \end{gathered}[/tex]now let's substitute the values into the expression
[tex]\begin{gathered} \frac{c-d^2}{7d} \\ \frac{11-(5)^2}{7\times5}=\frac{11-25}{35}=-\frac{14}{35}=-\frac{2}{5} \end{gathered}[/tex]from the calculation above, the value of the expression is equal to -2/5
