Graph the inequality x+y is greater than or equal to -4

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?

How can you decide witch operations to use to slice a two step equation

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?