Final answer:
To find the expression equal to 811, we need to evaluate each given option.
Step-by-step explanation:
To find the expression equal to 811, we need to consider the given options: 11 ÷ 8, 11−8, 8 ÷ 11, and 8−11. Let's evaluate each option:
11 ÷ 8: This equals 1.375, which is not equal to 811.
11−8: This equals 3, which is not equal to 811.
8 ÷ 11: This equals 0.727272..., which is not equal to 811.
8−11: This equals -3, which is not equal to 811.
Therefore, none of the given expressions are equal to 811.