How I'm getting the last row? please help a girl out.

Plz which expression is equivalent to the expression below?

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?

Toyland is having a sale. all items are 20% off. how much will you save on an item that usually sells for 95$ explain your