I just took a test in school today. What question was I asked?

Question I was asked: In cherry tomatoes, red color (R) is dominant to yellow color (r). If two heterozygous plants are crossed, what percentage of the offspring will be yellow?

I just took a test in school today. What question was I asked?

Question I was asked: Which is an example of a chemical reaction?

I just took a test in school today. What question was I asked?

Question I was asked:
Which of the following is the best estimate of the number of stars in a typical galaxy?