Algebra 1

$-8\gt d$
$56\lt-7d\longrightarrow$ divide both sides by -7; reverse the inequality sign $56\div-7\gt-7d\div-7\longrightarrow$ divide $-8\gt d$ Check the inequality. $56\overset?\lt-7(-10)$ $56\lt70\checkmark$ Since -8 is not included in the solution, the endpoint of the graph is an open circle.