Which description is paired with its correct expression? seven less than the quotient of two and a number squared, increased by six;
7-
+ 6
nine times the difference of a number cubed and three; 9(n2-3)
eight more than the quotient of a number squared and four, decreased by seven;
8+
4.
7
n'
twice the difference of a number cubed and eight, 2n3 - 8