Final answer:
To rewrite the expression 9(6 + 5) as the sum of 54 and another whole number, simplify the expression inside the parentheses to get 11. Then, multiply 9 by 11 to get 99. Therefore, the expression can be rewritten as 54 + 99.
Step-by-step explanation:
To rewrite the expression 9(6 + 5) as the sum of 54 and another whole number, we need to simplify the expression inside the parentheses first. 6 + 5 equals 11, so the expression becomes 9(11). Now we can use the distributive property to multiply 9 by each term inside the parentheses. 9 multiplied by 11 is 99. Therefore, the given expression can be rewritten as 54 + 99.