Final answer:
The number that is a solution of the inequality b > 10.6 is 11.
Step-by-step explanation:
To find which number is a solution of the inequality b > 10.6, we can substitute the given options into the inequality and see which ones satisfy the condition. In this case, option (d) 11 satisfies the condition because 11 is greater than 10.6. Therefore, the correct answer is (d) 11.