I think it is D, hope it helps
You can only get 7 because you could get 8 of them but you need to remember that shipping is 5 dollars. 70/8.49 is 8.24499411 but it would be 7 dvds.
The quotient, or resulting number, will decrease.
The values are equal.
Root 5.76= 2.4
-2.4=-2.4
