The value of x is X=-y over 3 +1
The advantage of using exponential notation is that you won't have to keep writing a long number
For example, 40,000,000,000,000 would be tedious to write over again, but using exponential notation that number would be just 4 X 10^13.
It would be 90%. 18 is 90% of 20
Answer:
The answer for addition one is 11 1/2. The answer for subtraction would be -5/6.
Hope this helps. Can I please get brainliest if possible?
