Tìm cực trị của hàm số x3-3x^2-9x+7

Can you decompose the numbers 20,740,6,000

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

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