Does the set of ordered pairs {(3, 11), (6, 1), (6, 4), (15, 4), (18, 18)} represent a function? Explain why or why not.

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?

Thelime contains the point(-3,0) and parallel x-3y=3( show all work)

Sarah used her calculator to find sin 125 degrees. she wrote down sin sin125 degrees.57. how could sarah recognize that her answer is incorrect?