Final answer:
The mixed number form of 18-7 is 2 4/7. Hence the correct answer is option B
Step-by-step explanation:
To represent 18-7 as a mixed number, we need to divide 18 by 7. The quotient is 2 and the remainder is 4. So the mixed number form of 18-7 is 2 4/7. Therefore, the correct answer is b. 2 4/7.
Hence the correct answer is option B