Could you help me with this

Factor the monomial completely 42a3b3

Which of the following equations is of the parabola whose vertex is at (4, 3), axis of symmetry parallel to the y-axis and focus at (4, -3)? a.) y+3=1/24 (x+4)^2 b.)y-3=-1/24 (x-4)^2 c.)x-4=-1/24 (y-3)^2

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?