Find the volume of a square prism with a height of 12 and a base with a side measure of 13?

In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

Need this asap if anyone can i would be very grateful. if you could show workings that would really

Find the values of y: 3y^3(y^2+ 2/3y)=0