
<em>Evaluate 1/4c+3d when c=6, and d=7.</em>
<em />
<em> </em>
Replace c with 6, and d with 7:-

On simplification,

On further simplification,

On further simplification,

Adding the numerators,

Finally, Reducing the fraction:-


<h3>Good luck with your studies.</h3>

No. If it has three sides, then it's a triangle, and not a trapezoid.
First you need to multiple minus in second bracket, also in other side you need to multiple - 3 in bracket

Final answer is 0