Answer:
A
Step-by-step explanation:
I believe it is A because there is not any repeating X's. There is a repeating y which is 1. Therefore it is A.
I have a strong felling the answer is the fourth shoice according to my calculations.
Given number is 4,8100,000,000,000.
In this number of zero is 11. So we can write it as

But for scientific notation we will enter decimal after two place in reverse direction.For this we will also multiply number by 10^2.
So number will be

So fourth option is correct.
Answer:
192x-4= -768
Step-by-step explanation: