What is the percent of change if 40 is increased to 50?

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

Select a graph that have an equation with a < 0

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?