List the number from greatest to least 3/2, 0.75,-24,-3/2

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 result of adding the system of equations? 2x+y=4 3x-y=6

What is the slope of the line shown below?