What is the greatest whole number that rounds to 621,860?

What is the quotient of m^6/5 ÷ 5/m^2? assume m does not equal pl

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?