I think it would be to refute the counterclaim.
Hope this helps!
Answer: -3.11 x 10^ 1
Step-by-step explanation: - 3
3.11 X 10
= -31.1, in decimal form -3.11 x 10^ 1
I
10.2 all you have to do is add up all the sides... hope this helps!
Compare 100 to 110, and see that to go from 100 to 110 is a 10% increase, but to go from 110 back down to 100 is a 9.09% decrease not a 10% decrease