Answer
$t\leq8$
Work Step by Step
$8t\leq64\longrightarrow$ divide both sides by 8
$8t\div8\leq64\div8\longrightarrow$ divide
$t\leq8$
Check the endpoint. Substitute 8 for t.
$8(8)\overset?=64$
$8=8\checkmark$
Check the inequality. Choose any number less than 8 and substitute for t.
$8(7)\overset?\leq64$
$56\leq64\checkmark$
Since 8 is included in the solution, the endpoint of the graph is a solid circle.
