Question # 17 Solution
Answer:

Step-by-step Explanation:
The given expression

And we have to solve for x₁
So,
Lets solve for x₁.

Multiply both sides by x₂ - x₁




Divide both sides by -m


Therefore, 
Question # 23 Solution
Answer:

Step-by-step Explanation:
The given expression

And we have to solve for n
So,
Let's solve for n.

Multiply both sides by b.

Factor out n.

Divide both sides by -b + x.


Therefore, 
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Answer:
200
Step-by-step explanation:
Water cooler
holds = 50 pt of water
1 L≈1.06 qt (which is the value of US liquid quart)
1.06 qt = 2.12 pt (which is the value of US liquid pint)
So when we are calculating how many liters of water cooler holds,
divide the 50pt with 2.12pt
50pt/2.12pt = 23.6 Liters
<span>So 23.6 is the correct answer.</span>
Answer is A.
√6 + √2
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4
1, 2, 3, 5, and 7 are all functions. 4, 6, 8, and 9 are not functions.