Hi!
Two negatives make a positive, so this can be rewritten as
-7+2.5
The answer is D. -7+2.5
Hope this helps! :)
-Peredhel

<span>Explanation for the last step:</span>
Answer:
jaxoscxhdnsidsbc
Step-by-step explanation:
aciowshavpaslkn oica xhkvsaih oilcs
Answer:
See below
Step-by-step explanation:
If an expression is not dependent on x, it simplified form must not contain x. To show that this is the case for (a) and (b) we need to simplify them and assess:
(a)

Indeed, does not depend on x!
And (b)

Again, does not depend on x.