I think it is either a or c
Answer:
$3.20
Step-by-step explanation:
I hope this helps.
Sorry if I'm wrong.
its A
trust me for khan
If x = 16 and y = -16, then x+y = 16+(-16) = 0
Alternatively, if x = -16 and y = 16, then x+y = -16+16 = 0
So y = -x and x can be equal to either 16 or -16