D
Because if x=8 and y=3 then 3x and 8y are equal. So if we are trying to find an equal to 40y then you need to find what 40 times y equals first. So, 40x3=120. If we substitute x with 8 and multiply it with 15 then you get 120 so it’s equal.
Answer: the black and yellow with high handle - positive ; white and blue - positive ; red and black - negative
Explanation:
I don’t get it. what’s goin on ?