20 and 10, 20 is 2 times 10 and if you add them together its 30
1, 3, and 5 would be my best guesses but I’m not 100 percent sure
Answer and Step-by-step explanation:
The answer is attached below
Total number of sheets are 12.
Total number of white sheets= 9
Total number of red sheets = 3
Probability = Number of favorable outcomes/ total number of outcomes.
Hence
When Calvin throws the sheets in the air, the probability that he gets a white sheet is

which equals to 
that becomes 0.75