Step-by-step explanation:
(1+3x-1)×{1-(3x-1)}
=3x.(1-3x+1)
=3x.3x
=9x^2.
A) multiply equation A by -2 so you get -2x - 2z = -12 and then you can add both equations to eliminate z
It would be 5%. I know the answer is right I just don’t know how to explain it. Sry. But I hope this helps.
7/7.42 = $0.94
Hope this helped :)
I’m not very good at math, but maybe try adding all of them together
