[15-0] would be a numerical expression for this. :P
Answer:
I think the answer is 9.920 please be careful with your answer I think it 9.920 because it says nine hundred and ninety two thousands so therefor the decimal need to be in between 9 and 9 I hope you get this correct!
step-by-step explanation:

the idea being, you multiply the "x" by some power of 10 that moves the repeating part to the left of the decimal point and the split it like above.
Answer:

Step-by-step explanation:

Rewrite the expression

Add

Therefore,
is equal to
.
I hope this helps!