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What is the product of (x-3) and (x+7)?
First multiply the x's:-
x•x=x²
Now multiply x times 7:-
7x
So we have
x²+7x
Now multiply -3 times x:-
-3x
So we have
x²+7x-3x
Now multiply 7 and -3:-
x²+7x-3x-21
On simplification,
x²+4x-21
<h3>Good luck.</h3>
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Ratio = 1:3
or in other words = sale price:original price
Therefore, it'd look like this = sale price:$81
So to work out the original price, you'd do $81 divided by 3 (81 ÷ 3 = $27).
The sale price is $27..
7x-4=31
7x=31+4
7x=35
x=35/7=5
4y+8=24
4y=24-8
4y=16
y=16/4=4
Hence, x=5;y=4
I might be wrong but I'm gonna go with
D is my answer
Answer:
Step-by-step explanation:It appears i cant answer your question but what i can do is provide this paragraph as a trade for points. Appreciate your help. :)
