What is the length of AB in units D to C is 12 and A to D is 4

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

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 negative 3/9 times negative 2/8 ?