Remember that
The word " at most" means ----> less than or equal to
so
the inequality is
[tex]t\leq8[/tex]
The solution of the inequality is the interval (-infinite,8]
but remember that the variable t cannot be a negative number
so
the solution is the interval [0,8]
In a number line, the solution is the shaded area at the right of t=0 (closed circle) and at the left of t=8 (closed circle)
