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Expected value with calculated probabilities

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Problem

Laila is playing a game where there are 4 blue markers and 6 red markers in a box. She is going to pick 3 markers, and replace each marker immediately after she picks it.
If she picks all 3 red markers, she will win a total of $400. If the first 2 markers she picks are blue, she will win a total of $300. Under any other outcome, she will win $0.
What is the expected value of Laila's winnings?
Round your answer to the nearest cent.
$
  • Your answer should be
  • an integer, like 6
  • an exact decimal, like 0.75
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • a mixed number, like 1 3/4
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