MK is the same as NL.
Just read the rest of the questions.
They practically give you the answers.
5x^2 - 24x + 8 is your answer to this equation
The perimeter of the triangle with those given lengths is
12 dollars per hour. because 12*6=72 and 12/2 is 6 so 72+6= 78
You answer is going to be: 540