-t/5 is > or = to 15
Ummmmmm..
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Depends on what t is, if you are looking for a specfic answer. If you are looking to simplify, t ≤ -75
Hope this helps.
-t/5 is > or = to 15 multiply both sides by -1 and reverse the inequality
t/5<=-15 multiply both sides by 5
t<=-75