Answer
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s>=4500

↓Steps Explained:↓

Solve for s

0.20s + 600 ≥ 1500

Divide each side by 0.20

0.20s
0.20
=
  
600
0.20

Group constants

Group our constants 600 and 1500.
subtract 600 from both sides

0.20s + 600 - 600 ≥ 1500 - 600

Cancel 600 on the left side:

0.20s ≥ 900

Divide each side of the inequality by 0.20

0.20s
0.20
  
900
0.20

s ≥ 4500

Final Answer

s>=4500
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