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Answer:
The answer is the first one. Inside the absolute value symbols it is negative but absolute value answers are always positive. Instead of -30 the answer is 30.
Answer: 
Step-by-step explanation:
<u>Given:</u>
The coordinates of Point A: (8, 9)
The coordinates of Point B are unknown: (x, y)
The distance from A to B is 10 units
Then, using the distance formula:

Therefore,

Answer:
$80
Step-by-step explanation:
From the question, we are given The simple interest formula as I = Prt,
where l = simple interest on an amount= $40
t= years=5years
at a rate r= 10%
The rate= 10/100= 0.1
Then since we are looking for P, we can make P subject of formula from this expression;
I = Prt
P=I/rt
P= 40/(0.1 ×5)
P= 40/0.5
P= 80
therefore, the amount of money p that is needed is $80
Mr. Webster is buying a carpet for an exercise room in his basement the room will an area of 230 ft