Answer:
or 0.0000128
Step-by-step explanation:
Add the exponents together
-4+-3=-7
Answer:
Is a solution
Step-by-step explanation:
Just do the division 
Answer:
Another rational number
Step-by-step explanation:
Here, we want to get the type of number that should be added to a rational number to explain that the sum of two rational numbers is rational
What we simply have to do here is to add another rational number to the rational number we have already
By adding another rational number to the rational number we have, we will get another rational number
That has successfully proven what we are trying to prove