Find the surface area/volume for each

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

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)

Which statement about the annual percentage rate (apr) is not true?