Answer:
A. 1/8
Step-by-step explanation:
The probability of getting a red gumball is 10/20 or 1/2. The probability of getting a green gumball is 5/20 or 1/4. If Matthew wants to get a red then green, you have to multiply both the probabilities together. This will make it 1/2 times 1/4. This will be equal to 1/8. Therefore, the answer is A.
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