<span>19, 23, 29, 31, 37, 41, 43 are the numbers, i believe</span>
You do the same as if it was positive you will multiply -4*-4 to get 16 and then you will multiply 16*-4 to get -64
Hope this helps
I'd go with 2,000
but if it says anything about estimating to a different place it could be different.
Step-by-step explanation:
To get the inverse, swap the x- and y-variables, then solve for y. We should have the equation: 
Solving for y:
because
or 
So on interchanging the variable, we get the equation: