Help with this math question please

What is the greatest common factor of 6a, 8a^{2}, and 14?

What is the area of mnp? 40 m2 60 m2 68 m2 127.5 m2

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.