Answer
$4\frac{1}{2}$ ton
Work Step by Step
$9000lb=9000lb\times\frac{1ton}{2000lb}=\frac{9000}{2000}ton=4\frac{1000}{2000}ton=4\frac{1}{2}ton$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.