Yes, 14 is correct.
15: 3^4 - 4
16: 7n - 6
17: n^2 / 8
18: 3n x 9
B) two real roots is the answer because it is bigger than 0.
Translate story problems into equations. Solve equations. Translate story problems into inequalities.
The fraction is 27/30. It is equivalent to 9/10 and 27 + 30 = 57.
For the solution I isolated the variable by dividing each side by factors that don't contain the variable.
x = -6 + ∛2 / 2
x ≈ -5.37003947
Hope this helps!! :3
(If not, sorry)