Answer:
0.25
Step-by-step explanation:
Let's first work out the left side. 10^-4 is equal to 0.0001, and that multiplied by 2.3 is 0.00023
So it's 0.00023/(9.2x10^-4)
Now we can work out the right side. 10^-4 is again, 0.0001
And 9.2x0.0001 is 0.00092
So now we should work out 0.00023/0.00092, if we multiply both sides by 1000 we get 23/92, which is much easier. 23 is a quarter or a fourth of 92, so the answer is 1/4, which is 0.25
Hope that helped