Using the distance formula,


Since ABCD has two pairs of opposite congruent sides, it is a parallelogram.
Answer: 
You can write this as (-infinity, 7) if you aren't able to use the infinity symbol.
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Explanation:
Think of x < 7 as writing 
So x is between negative infinity and 7, excluding both endpoints.
To write
in interval notation, we write
The curved parenthesis tell us to exclude the endpoint.
18(X-3xy+2y)
Step-by-step explanation:
hope it helps just take 18 common mark me as the brainliest
Answer:
10
Step-by-step explanation:
if you divide 100 divided by 10 equal 10 and that's the correct answer for how I got 10