What is the sum of the interior angle measures of a polygon
that has 15 sides?
Sum = [?]°
Hint: Sum = (n-2)180

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

How to do this , and can some one explain

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge