C. Buying it a percent discount without sales tax.
Because of not having to pay $10, so it is awesome.
Answer: choice A. 40 liters
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Explanation:
x = number of liters of the 50% alcohol solution
If we have x liters of 50% alcohol, then we have 0.50*x liters of pure alcohol. This is added to 0.90*40 = 36 liters of pure alcohol (from the 90% solution).
So far we have 0.50*x + 36. This expression represents the total amount of pure alcohol. We want a 70% solution, so we want 70% of the total 40+x meaning 0.50*x + 36 is to be set equal to 0.70*(40+x) and we solve for x as shown below
0.50*x + 36 = 0.70*(40+x)
0.50*x + 36 = 0.70*(40)+0.70*(x)
0.50*x + 36 = 28+0.70*x
36 - 28 = 0.70*x - 0.50x
8 = 0.20x
0.20x = 8
x = 8/0.20
x = 40
So that is why the answer is choice A. 40 liters
We have been given graph of circle V with radius 14 feet. We are asked to find the area of the circle V.
We will use area of circle formula to solve our given problem.
, where r represents radius of circle.
Upon substituting 
in above formula, we will get:
Therefore, the area of the circle V is 
square feet and option 'c' is the correct choice.
Answer:
Its 180!
Step-by-step explanation:
