Alan's company rents cars to people who are at least 24 years old. which graph best represents the possible ages of people who can rent cars from alan's company?
a number line with a closed circle on 24, with shading to the left.
a number line with an open circle on 24, with shading to the left.
a number line with a closed circle on 24, with shading to the right.
a number line with an open circle on 24, with shading to the right.