Alguien me ayuda pls :c

Players on the school soccer team are selling candles to raise money for an upcoming trip. each player has 24 candles to sell. if a player sells 4 candles a profit of$30 is made. if he sells 12 candles a profit of $70 is made

The vertices of a triangle are a(7.5), b(4,2), and c19. 2). what is

Use corrrct notations to name the sides