X - 9y = -45 i’m not sure what line ? but this is in standard form
Well,
Given that
,
We can rewrite the equation like,

Now use,
which implies that 
That means that,

By def
therefore 
So the fraction now looks like,

Which is equal to the identity,

Hope this helps.
r3t40
182 pounds with adding and subtracting with the context in the paragraph
--------------------------------
Original Price
--------------------------------
$50
--------------------------------
Discount
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15% of $50
= 15% x $50
= 0.15 x 50
= $7.50
--------------------------------
Sale Price
--------------------------------
$50 - $7.50 = $42.50
--------------------------------
Answer: $42.50
--------------------------------
Answer:
The first one is 48.10 - 40 = 8.1
8.1 / 0.45 = 18
The second one is D
Step-by-step explanation: