first option, it's basically the bank of the banks
Answer:
D. Both b) and c) are correct.
Explanation:
Consumer surplus is the difference between the total profit we get from service and its market price. This means that the first unit to acquire we value it highly but as we acquire additional units our valuation falls. However, the price we pay for any unit is always the same.
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Answer:
12 miles
Explanation:
Two triangles are similar if their two corresponding angles are congruent (equal) to each other.
if their two corresponding angles are of equal this also means that the third angle is also equal and corresponding.
ΔABC ∼ ΔEDC (two corresponding angles are congruent)
Therefore to find the sides, we use the following proportions:

BC = x miles, CD = 6 miles. Therefore BD = BC + CD = (6 + x) miles
DE = 8 miles, AB = 12 miles
Therefore:

A witness that saw or heard certain things but didn’t see the crime happen