You would need to add 360L of the 20% ethanol solution.
Answer: (B) The price elasticity of demand for good Z = 0.86
Step-by-step explanation:
The formula for determining elasticity of demand by using the midpoint method is
(Q2 - Q1)/[(Q2 + Q1)/2] / (P2 - P1)/[(P2 + P1)/2]
Where
P1 is the initial price of the item.
P2 is the final price of the item.
Q1 is the initial quantity demanded for the item.
Q2 is the final quantity demanded for the item.
From the information given,
P1 = 10
P2 = 15
Q1 = 85
Q2 = 60
The price elasticity of demand for good Z = (60 - 85)/[(60 + 85)/2] / (15 - 10)/[(15 + 10)/2]
= (-25/72.5) / (5/12.5) = -25/72.5 × 12.5/5
= - 312.5/362.5 = - 0.86
The correct answer is y=4x-1
The range of the video games owned for the cluster is between 8 to 10.
Given
A group of children 6 to 10 years old were asked how many video games they owned.
The scatter plot shows the results.
<h3>What is the range?</h3>
The range is the difference between the lowest and highest numbers in a data set.
The range of video games owned for the cluster is 8 to 10.
Therefore,
The range of the video games owned for the cluster is;

Hence, the range of the video games owned for the cluster is between 8 to 10.
To know more about Range click the link given below.
brainly.com/question/8041076