Answer:
Yes
Step-by-step explanation:
Given

Required
Is D a subset of itself?
A subset is defined in such a way that, all elements of the subset can be found in the main set.
So; because set D contains all of its elements, then D is a subset of itself.

Answer:
8x=2a
Step-by-step explanation:
^ this symbol means multiply so.....
8×x=8x
3a-2a=a(1a)
a×2=2a
answer=8x=2a
Due to the u-shaped graph suggested by these data points, this would best be matched with a quadratic function.
Answer:
A or D
Step-by-step explanation:
because I dont know what the experiment is just that it was grown differently
It would be 49 bc the square root of 49 is 7 49-7=42