What are these black diamonds are they a computer thing or a math thing i havent been to school for a while so i have to ask

Match each inequality to the number line that represents its solution

Use the given information to determine the exact trigonometric value.

Consider a= {x|x is alive} f={x|x is in france} m={x|x is a national monument} w{x|x is a woman}. which statements are true regarding elements of the given sets? check all that apply.