Please help me ASAP this is past due and I really need help graphing it all I will give high points and I will also give brainliest

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Negative 5 1/12 + negative 4 1/4 + 6 3/4

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?