Answer
$s\leq11$
Work Step by Step
$s-10\leq 1$ : add 10 to both sides
$s-10+10\leq 1+10$ : simplify
$s\leq 11$
Verify that 11 is a solution at the endpoint.
$11-10\overset?= 1$
$1=1\checkmark$
Verify that a number less than 11 is a solution.
$10-10\overset?\leq1$
$0\leq1\checkmark$
