What is the solution to this equation?
3(n - 9) - 2011 + 4) = 6n2

Solve the system of equations. y= 2x y= x^2 - 15

1.two more than the quotient of a number and 6 is equal to 7 use the c for the unknown number translate the sentence into an equation

Aregular pentagon with a perimeter of 21 inches is dilated by a scale factor of 5/3 to create a new pentagon. what is the perimeter of the new pentagon?