To predict the number of cheese slices sold, we can compare the proportion of patrons who prefer cheese pizza to the total number of patrons surveyed.
Number of patrons who prefer cheese pizza: 9
Total number of patrons surveyed: 9 + 5 + 6 + 7 = 27
Proportion of patrons who prefer cheese pizza: 9/27 = 1/3
Therefore, to predict the number of cheese slices sold out of 1,299 total slices, we can use the proportion:
Number of cheese slices sold = (1/3) x 1299 = 433
Therefore, the correct answer is:
433 patrons