The correct awnser in my opion is d hope that helps
The opposite of something means to change this signed that is with the number.
If it is a positive number, the opposite would be negative.
So in this example, if it's the opposite of positive 5, that is -5. The opposite of -5 would be positive 5.
The equation that shows this correctly would be D.
2/10 of a gallon. 1/10 is half so then 1/10 times 2 would equal 2/10
