Answer:
D, 2(b-1)/ab
Step-by-step explanation:
subtract 2+b/ab from 3/a
it means 3/a - 2+b/ab
lcm is ab
(3b-(2+b))/ab
(3b-2-b)/ab
(3b-b-2)/ab
(2b-2)/ab
2(b-1)/ab
Answer:

So the discount is 33% and we are paying 67% of the value. The reason is given by the relative change:

Step-by-step explanation:
First we have a first discount of 40% so then using this condition and assuming that
represent the initial price, the price after the first discount
is given by:

That means 60% of the original value.
Now we have another discount of 45% for the 60% reamining after a 2 discount so let's
represent the price after the second disccount we can can express this price in terms of
or
liek this:


So the discount is 33% and we are paying 67% of the value. The reason is given by the relative change:

Answer:
u' = (-1, -4) , v' = (2, -4), w' = (2, -7)
Step-by-step explanation: