Answer :
Multiply -5 to both sides. -5 x 15 = -75, so t ≥ -75 would be your answer. :)
[tex]-\frac{t}{5} \geq 15[/tex]
[tex]-5 * (-\frac{t}{5}) \geq 15 * (-5)[/tex]
[tex]t \geq -75[/tex]
[tex]-5 * (-\frac{t}{5}) \geq 15 * (-5)[/tex]
[tex]t \geq -75[/tex]
