To prepare for a wedding, aiden bought 60 candles . he paid $0.37 for each candle . his sister bought 170 candles at a sale where paid $0.05 less for each candle than aiden did.

What is the difference between regular convex and concave polygons

A, b, c, and d have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. which sentence about the points is true? a. a, b, c, and d lie on the same line. b. and are perpendicular lines. c. and are parallel lines. d. and are intersecting lines but are not perpendicular. e. and are parallel lines.

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?