I believe the answer is 54%.
Hope this helps!
the correct option is answer choice D, because there are multiple 2's in the x column with different f(x) values.
I think the best way in memorizing the roots of numbers 1 - 30 is by through methods that would suitable for you but you must consider is the pattern in each number or the square, every number has it pattern and i know you realized it by now. I hope this would help
He can conclude that the system of equations has no solution since one equation in it always results with false equivalency.
Hope this helps.
r3t40