A because inverse is the opposite order so instead of -3/1 or 5/1 it becomes 1/-3 and 1/5
The answer is D, because you move to the right of the decimal to see if that number is 5 or above. Then you round up, (to 86). :) Hope this was helpful.
An=A(n-1)-5.9
The next two are -18.5 and -24.4
You subtract 5.9 from the previous number to get the new number