Answer:
108ft²
Step-by-step explanation:
6×6=36
12×12=144
144-36=108ft for the shaded part
Answer: The slope is 
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Step-by-step explanation:
1. You set up your Slope Formula 
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2. Substitue your points into the formula.
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3. Once you substitute, you will solve the equation
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4. Simplify the equation if you have to 
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Let the number be x.
First student increased the number by 23, therefore
⇒ x + 23
Second student decreased the number by 1, therefore
⇒ x - 1
The first student's result was 7 times greater than the result of the second student's, therefore
⇒ x + 23 = 7(x - 1)
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Solve for x:
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x + 23 = 7( x- 1)
x + 23 = 7x - 7
6x = 30
x = 5
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Answer: The number on the board is 5.
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<span>x - y = 30
therefore if y is 15
x - 15 = 30
so it follows that
x = 30 + 15
which means x has a value of 45x - y = 30
therefore if y is 15
x - 15 = 30
so it follows that
x = 30 + 15
which means x has a value of 45</span>
You just multiply the 3 two times than do the rest of the math
