What is the image of (4, -12) after a dilation by a scale factor of 1/4 centered at the origin?​

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. determine an equation to model his situation?

What is the difference between the equations of a vertical and a horizontal line?

I’m confused on how to work the pie charts