How much of Earths surface is covered by land? Write your answer in scientific notation ​

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3