The correct answer is: 7 is 1/10 of
.
Step-by-step explanation:
Simply translate "1/10 of what number is 7" mathematically as follows:
--- (1)
x represents "what number" in the sentence
= represents "is."
* represents "of."
Now evaluate equation(1) for x:

Hence the correct answer is 7 is 1/10 of
.