Work Step by Step
$600+0.04x\geq 3000 \lt=\gt 0.004x\geq2400 \lt=\gt x \geq 60000$
You can help us out by revising, improving and updating this answer.Update this answer
After 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.